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, *pane;
  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, isinspecting, sslfailed;
  53 } Client;
  54
  55 typedef struct {
  56         guint mod;
  57         guint keyval;
  58         void (*func)(Client *c, const Arg *arg);
  59         const Arg arg;
  60 } Key;
  61
  62 typedef struct {
  63         SoupCookieJarText parent_instance;
  64         int lock;
  65 } CookieJar;
  66
  67 typedef struct {
  68         SoupCookieJarTextClass parent_class;
  69 } CookieJarClass;
  70
  71 G_DEFINE_TYPE(CookieJar, cookiejar, SOUP_TYPE_COOKIE_JAR_TEXT)
  72
  73 static Display *dpy;
  74 static Atom atoms[AtomLast];
  75 static Client *clients = NULL;
  76 static GdkNativeWindow embed = 0;
  77 static gboolean showxid = FALSE;
  78 static char winid[64];
  79 static gboolean usingproxy = 0;
  80 static char togglestat[6];
  81 static char pagestat[3];
  82
  83 static void beforerequest(WebKitWebView *w, WebKitWebFrame *f,
  84                 WebKitWebResource *r, WebKitNetworkRequest *req,
  85                 WebKitNetworkResponse *resp, gpointer d);
  86 static char *buildpath(const char *path);
  87 static gboolean buttonrelease(WebKitWebView *web, GdkEventButton *e,
  88                 GList *gl);
  89 static void cleanup(void);
  90 static void clipboard(Client *c, const Arg *arg);
  91
  92 static void cookiejar_changed(SoupCookieJar *self, SoupCookie *old_cookie,
  93                 SoupCookie *new_cookie);
  94 static void cookiejar_finalize(GObject *self);
  95 static SoupCookieJar *cookiejar_new(const char *filename, gboolean read_only);
  96 static void cookiejar_set_property(GObject *self, guint prop_id,
  97                 const GValue *value, GParamSpec *pspec);
  98
  99 static char *copystr(char **str, const char *src);
 100 static WebKitWebView *createwindow(WebKitWebView *v, WebKitWebFrame *f,
 101                 Client *c);
 102 static gboolean decidedownload(WebKitWebView *v, WebKitWebFrame *f,
 103                 WebKitNetworkRequest *r, gchar *m,  WebKitWebPolicyDecision *p,
 104                 Client *c);
 105 static gboolean decidewindow(WebKitWebView *v, WebKitWebFrame *f,
 106                 WebKitNetworkRequest *r, WebKitWebNavigationAction *n,
 107                 WebKitWebPolicyDecision *p, Client *c);
 108 static void destroyclient(Client *c);
 109 static void destroywin(GtkWidget* w, Client *c);
 110 static void die(const char *errstr, ...);
 111 static void eval(Client *c, const Arg *arg);
 112 static void find(Client *c, const Arg *arg);
 113 static void fullscreen(Client *c, const Arg *arg);
 114 static const char *getatom(Client *c, int a);
 115 static void gettogglestat(Client *c);
 116 static void getpagestat(Client *c);
 117 static char *geturi(Client *c);
 118 static gboolean initdownload(WebKitWebView *v, WebKitDownload *o, Client *c);
 119
 120 static void inspector(Client *c, const Arg *arg);
 121 static WebKitWebView *inspector_new(WebKitWebInspector *i, WebKitWebView *v,
 122                 Client *c);
 123 static gboolean inspector_show(WebKitWebInspector *i, Client *c);
 124 static gboolean inspector_close(WebKitWebInspector *i, Client *c);
 125 static void inspector_finished(WebKitWebInspector *i, Client *c);
 126
 127 static gboolean keypress(GtkWidget *w, GdkEventKey *ev, Client *c);
 128 static void linkhover(WebKitWebView *v, const char* t, const char* l,
 129                 Client *c);
 130 static void loadstatuschange(WebKitWebView *view, GParamSpec *pspec,
 131                 Client *c);
 132 static void loaduri(Client *c, const Arg *arg);
 133 static void navigate(Client *c, const Arg *arg);
 134 static Client *newclient(void);
 135 static void newwindow(Client *c, const Arg *arg, gboolean noembed);
 136 static void pasteuri(GtkClipboard *clipboard, const char *text, gpointer d);
 137 static void populatepopup(WebKitWebView *web, GtkMenu *menu, Client *c);
 138 static void popupactivate(GtkMenuItem *menu, Client *);
 139 static void print(Client *c, const Arg *arg);
 140 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event,
 141                 gpointer d);
 142 static void progresschange(WebKitWebView *view, GParamSpec *pspec, Client *c);
 143 static void reload(Client *c, const Arg *arg);
 144 static void scroll_h(Client *c, const Arg *arg);
 145 static void scroll_v(Client *c, const Arg *arg);
 146 static void scroll(GtkAdjustment *a, const Arg *arg);
 147 static void setatom(Client *c, int a, const char *v);
 148 static void setup(void);
 149 static void sigchld(int unused);
 150 static void source(Client *c, const Arg *arg);
 151 static void spawn(Client *c, const Arg *arg);
 152 static void stop(Client *c, const Arg *arg);
 153 static void titlechange(WebKitWebView *v, WebKitWebFrame *frame,
 154                 const char *title, Client *c);
 155 static void toggle(Client *c, const Arg *arg);
 156 static void togglestyle(Client *c, const Arg *arg);
 157 static void update(Client *c);
 158 static void updatewinid(Client *c);
 159 static void usage(void);
 160 static void windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame,
 161                 JSContextRef js, JSObjectRef win, Client *c);
 162 static void zoom(Client *c, const Arg *arg);
 163
 164 /* configuration, allows nested code to access above variables */
 165 #include "config.h"
 166
 167 static void
 168 beforerequest(WebKitWebView *w, WebKitWebFrame *f, WebKitWebResource *r,
 169                 WebKitNetworkRequest *req, WebKitNetworkResponse *resp,
 170                 gpointer d) {
 171         const gchar *uri = webkit_network_request_get_uri(req);
 172
 173         if(g_str_has_suffix(uri, "/favicon.ico"))
 174                 webkit_network_request_set_uri(req, "about:blank");
 175 }
 176
 177 static char *
 178 buildpath(const char *path) {
 179         char *apath, *p;
 180         FILE *f;
 181
 182         /* creating directory */
 183         if(path[0] == '/') {
 184                 apath = g_strdup(path);
 185         } else if(path[0] == '~') {
 186                 if(path[1] == '/') {
 187                         apath = g_strconcat(g_get_home_dir(), &path[1], NULL);
 188                 } else {
 189                         apath = g_strconcat(g_get_home_dir(), "/",
 190                                         &path[1], NULL);
 191                 }
 192         } else {
 193                 apath = g_strconcat(g_get_current_dir(), "/", path, NULL);
 194         }
 195
 196         if((p = strrchr(apath, '/'))) {
 197                 *p = '\0';
 198                 g_mkdir_with_parents(apath, 0700);
 199                 g_chmod(apath, 0700); /* in case it existed */
 200                 *p = '/';
 201         }
 202         /* creating file (gives error when apath ends with "/") */
 203         if((f = fopen(apath, "a"))) {
 204                 g_chmod(apath, 0600); /* always */
 205                 fclose(f);
 206         }
 207
 208         return apath;
 209 }
 210
 211 static gboolean
 212 buttonrelease(WebKitWebView *web, GdkEventButton *e, GList *gl) {
 213         WebKitHitTestResultContext context;
 214         WebKitHitTestResult *result = webkit_web_view_get_hit_test_result(web,
 215                         e);
 216         Arg arg;
 217
 218         g_object_get(result, "context", &context, NULL);
 219         if(context & WEBKIT_HIT_TEST_RESULT_CONTEXT_LINK) {
 220                 if(e->button == 2) {
 221                         g_object_get(result, "link-uri", &arg.v, NULL);
 222                         newwindow(NULL, &arg, e->state & GDK_CONTROL_MASK);
 223                         return true;
 224                 }
 225         }
 226         return false;
 227 }
 228
 229 static void
 230 cleanup(void) {
 231         while(clients)
 232                 destroyclient(clients);
 233         g_free(cookiefile);
 234         g_free(scriptfile);
 235         g_free(stylefile);
 236 }
 237
 238 static void
 239 cookiejar_changed(SoupCookieJar *self, SoupCookie *old_cookie,
 240                 SoupCookie *new_cookie) {
 241         flock(COOKIEJAR(self)->lock, LOCK_EX);
 242         if(new_cookie && !new_cookie->expires && sessiontime) {
 243                 soup_cookie_set_expires(new_cookie,
 244                                 soup_date_new_from_now(sessiontime));
 245         }
 246         SOUP_COOKIE_JAR_CLASS(cookiejar_parent_class)->changed(self,
 247                         old_cookie, new_cookie);
 248         flock(COOKIEJAR(self)->lock, LOCK_UN);
 249 }
 250
 251 static void
 252 cookiejar_class_init(CookieJarClass *klass) {
 253         SOUP_COOKIE_JAR_CLASS(klass)->changed = cookiejar_changed;
 254         G_OBJECT_CLASS(klass)->get_property =
 255                 G_OBJECT_CLASS(cookiejar_parent_class)->get_property;
 256         G_OBJECT_CLASS(klass)->set_property = cookiejar_set_property;
 257         G_OBJECT_CLASS(klass)->finalize = cookiejar_finalize;
 258         g_object_class_override_property(G_OBJECT_CLASS(klass), 1, "filename");
 259 }
 260
 261 static void
 262 cookiejar_finalize(GObject *self) {
 263         close(COOKIEJAR(self)->lock);
 264         G_OBJECT_CLASS(cookiejar_parent_class)->finalize(self);
 265 }
 266
 267 static void
 268 cookiejar_init(CookieJar *self) {
 269         self->lock = open(cookiefile, 0);
 270 }
 271
 272 static SoupCookieJar *
 273 cookiejar_new(const char *filename, gboolean read_only) {
 274         return g_object_new(COOKIEJAR_TYPE,
 275                             SOUP_COOKIE_JAR_TEXT_FILENAME, filename,
 276                             SOUP_COOKIE_JAR_READ_ONLY, read_only, NULL);
 277 }
 278
 279 static void
 280 cookiejar_set_property(GObject *self, guint prop_id, const GValue *value,
 281                 GParamSpec *pspec) {
 282         flock(COOKIEJAR(self)->lock, LOCK_SH);
 283         G_OBJECT_CLASS(cookiejar_parent_class)->set_property(self, prop_id,
 284                         value, pspec);
 285         flock(COOKIEJAR(self)->lock, LOCK_UN);
 286 }
 287
 288 static void
 289 evalscript(JSContextRef js, char *script, char* scriptname) {
 290         JSStringRef jsscript, jsscriptname;
 291         JSValueRef exception = NULL;
 292
 293         jsscript = JSStringCreateWithUTF8CString(script);
 294         jsscriptname = JSStringCreateWithUTF8CString(scriptname);
 295         JSEvaluateScript(js, jsscript, JSContextGetGlobalObject(js),
 296                         jsscriptname, 0, &exception);
 297         JSStringRelease(jsscript);
 298         JSStringRelease(jsscriptname);
 299 }
 300
 301 static void
 302 runscript(WebKitWebFrame *frame) {
 303         char *script;
 304         GError *error;
 305
 306         if(g_file_get_contents(scriptfile, &script, NULL, &error)) {
 307                 evalscript(webkit_web_frame_get_global_context(frame),
 308                                 script, scriptfile);
 309         }
 310 }
 311
 312 static void
 313 clipboard(Client *c, const Arg *arg) {
 314         gboolean paste = *(gboolean *)arg;
 315
 316         if(paste) {
 317                 gtk_clipboard_request_text(
 318                                 gtk_clipboard_get(GDK_SELECTION_PRIMARY),
 319                                 pasteuri, c);
 320         } else {
 321                 gtk_clipboard_set_text(
 322                                 gtk_clipboard_get(GDK_SELECTION_PRIMARY),
 323                                 c->linkhover ? c->linkhover : geturi(c), -1);
 324         }
 325 }
 326
 327 static char *
 328 copystr(char **str, const char *src) {
 329         char *tmp;
 330         tmp = g_strdup(src);
 331
 332         if(str && *str) {
 333                 g_free(*str);
 334                 *str = tmp;
 335         }
 336         return tmp;
 337 }
 338
 339 static WebKitWebView *
 340 createwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c) {
 341         Client *n = newclient();
 342         return n->view;
 343 }
 344
 345 static gboolean
 346 decidedownload(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r,
 347                 gchar *m,  WebKitWebPolicyDecision *p, Client *c) {
 348         if(!webkit_web_view_can_show_mime_type(v, m)) {
 349                 webkit_web_policy_decision_download(p);
 350                 return TRUE;
 351         }
 352         return FALSE;
 353 }
 354
 355 static gboolean
 356 decidewindow(WebKitWebView *view, WebKitWebFrame *f, WebKitNetworkRequest *r,
 357                 WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p,
 358                 Client *c) {
 359         Arg arg;
 360
 361         if(webkit_web_navigation_action_get_reason(n) ==
 362                         WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED) {
 363                 webkit_web_policy_decision_ignore(p);
 364                 arg.v = (void *)webkit_network_request_get_uri(r);
 365                 newwindow(NULL, &arg, 0);
 366                 return TRUE;
 367         }
 368         return FALSE;
 369 }
 370
 371 static void
 372 destroyclient(Client *c) {
 373         Client *p;
 374
 375         webkit_web_view_stop_loading(c->view);
 376         gtk_widget_destroy(GTK_WIDGET(c->view));
 377         gtk_widget_destroy(c->scroll);
 378         gtk_widget_destroy(c->vbox);
 379         gtk_widget_destroy(c->win);
 380
 381         for(p = clients; p && p->next != c; p = p->next);
 382         if(p) {
 383                 p->next = c->next;
 384         } else {
 385                 clients = c->next;
 386         }
 387         free(c);
 388         if(clients == NULL)
 389                 gtk_main_quit();
 390 }
 391
 392 static void
 393 destroywin(GtkWidget* w, Client *c) {
 394         destroyclient(c);
 395 }
 396
 397 static void
 398 die(const char *errstr, ...) {
 399         va_list ap;
 400
 401         va_start(ap, errstr);
 402         vfprintf(stderr, errstr, ap);
 403         va_end(ap);
 404         exit(EXIT_FAILURE);
 405 }
 406
 407 static void
 408 find(Client *c, const Arg *arg) {
 409         const char *s;
 410
 411         s = getatom(c, AtomFind);
 412         gboolean forward = *(gboolean *)arg;
 413         webkit_web_view_search_text(c->view, s, FALSE, forward, TRUE);
 414 }
 415
 416 static void
 417 fullscreen(Client *c, const Arg *arg) {
 418         if(c->fullscreen) {
 419                 gtk_window_unfullscreen(GTK_WINDOW(c->win));
 420         } else {
 421                 gtk_window_fullscreen(GTK_WINDOW(c->win));
 422         }
 423         c->fullscreen = !c->fullscreen;
 424 }
 425
 426 static const char *
 427 getatom(Client *c, int a) {
 428         static char buf[BUFSIZ];
 429         Atom adummy;
 430         int idummy;
 431         unsigned long ldummy;
 432         unsigned char *p = NULL;
 433
 434         XGetWindowProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window),
 435                         atoms[a], 0L, BUFSIZ, False, XA_STRING,
 436                         &adummy, &idummy, &ldummy, &ldummy, &p);
 437         if(p) {
 438                 strncpy(buf, (char *)p, LENGTH(buf)-1);
 439         } else {
 440                 buf[0] = '\0';
 441         }
 442         XFree(p);
 443
 444         return buf;
 445 }
 446
 447 static char *
 448 geturi(Client *c) {
 449         char *uri;
 450
 451         if(!(uri = (char *)webkit_web_view_get_uri(c->view)))
 452                 uri = "about:blank";
 453         return uri;
 454 }
 455
 456 static gboolean
 457 initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
 458         Arg arg;
 459
 460         updatewinid(c);
 461         arg = (Arg)DOWNLOAD((char *)webkit_download_get_uri(o), geturi(c));
 462         spawn(c, &arg);
 463         return FALSE;
 464 }
 465
 466 static void
 467 inspector(Client *c, const Arg *arg) {
 468         if(c->isinspecting) {
 469                 webkit_web_inspector_close(c->inspector);
 470         } else {
 471                 webkit_web_inspector_show(c->inspector);
 472         }
 473 }
 474
 475 static WebKitWebView *
 476 inspector_new(WebKitWebInspector *i, WebKitWebView *v, Client *c) {
 477         return WEBKIT_WEB_VIEW(webkit_web_view_new());
 478 }
 479
 480 static gboolean
 481 inspector_show(WebKitWebInspector *i, Client *c) {
 482         WebKitWebView *w;
 483
 484         if(c->isinspecting)
 485                 return false;
 486
 487         w = webkit_web_inspector_get_web_view(i);
 488         gtk_paned_pack2(GTK_PANED(c->pane), GTK_WIDGET(w), TRUE, TRUE);
 489         gtk_widget_show(GTK_WIDGET(w));
 490         c->isinspecting = true;
 491
 492         return true;
 493 }
 494
 495 static gboolean
 496 inspector_close(WebKitWebInspector *i, Client *c) {
 497         GtkWidget *w;
 498
 499         if(!c->isinspecting)
 500                 return false;
 501
 502         w = GTK_WIDGET(webkit_web_inspector_get_web_view(i));
 503         gtk_widget_hide(w);
 504         gtk_widget_destroy(w);
 505         c->isinspecting = false;
 506
 507         return true;
 508 }
 509
 510 static void
 511 inspector_finished(WebKitWebInspector *i, Client *c) {
 512         g_free(c->inspector);
 513 }
 514
 515 static gboolean
 516 keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
 517         guint i;
 518         gboolean processed = FALSE;
 519
 520         updatewinid(c);
 521         for(i = 0; i < LENGTH(keys); i++) {
 522                 if(gdk_keyval_to_lower(ev->keyval) == keys[i].keyval
 523                                 && CLEANMASK(ev->state) == keys[i].mod
 524                                 && keys[i].func) {
 525                         keys[i].func(c, &(keys[i].arg));
 526                         processed = TRUE;
 527                 }
 528         }
 529
 530         return processed;
 531 }
 532
 533 static void
 534 linkhover(WebKitWebView *v, const char* t, const char* l, Client *c) {
 535         if(l) {
 536                 c->linkhover = copystr(&c->linkhover, l);
 537         } else if(c->linkhover) {
 538                 free(c->linkhover);
 539                 c->linkhover = NULL;
 540         }
 541         update(c);
 542 }
 543
 544 static void
 545 loadstatuschange(WebKitWebView *view, GParamSpec *pspec, Client *c) {
 546         WebKitWebFrame *frame;
 547         WebKitWebDataSource *src;
 548         WebKitNetworkRequest *request;
 549         SoupMessage *msg;
 550         char *uri;
 551
 552         switch(webkit_web_view_get_load_status (c->view)) {
 553         case WEBKIT_LOAD_COMMITTED:
 554                 uri = geturi(c);
 555                 if(strstr(uri, "https://") == uri) {
 556                         frame = webkit_web_view_get_main_frame(c->view);
 557                         src = webkit_web_frame_get_data_source(frame);
 558                         request = webkit_web_data_source_get_request(src);
 559                         msg = webkit_network_request_get_message(request);
 560                         c->sslfailed = soup_message_get_flags(msg)
 561                                        ^ SOUP_MESSAGE_CERTIFICATE_TRUSTED;
 562                 }
 563                 setatom(c, AtomUri, uri);
 564                 break;
 565         case WEBKIT_LOAD_FINISHED:
 566                 c->progress = 100;
 567                 update(c);
 568                 break;
 569         default:
 570                 break;
 571         }
 572 }
 573
 574 static void
 575 loaduri(Client *c, const Arg *arg) {
 576         char *u, *rp;
 577         const char *uri = (char *)arg->v;
 578         Arg a = { .b = FALSE };
 579
 580         if(strcmp(uri, "") == 0)
 581                 return;
 582
 583         /* In case it's a file path. */
 584         if(uri[0] == '/') {
 585                 rp = realpath(uri, NULL);
 586                 u = g_strdup_printf("file://%s", rp);
 587                 free(rp);
 588         } else {
 589                 u = g_strrstr(uri, "://") ? g_strdup(uri)
 590                         : g_strdup_printf("http://%s", uri);
 591         }
 592
 593         /* prevents endless loop */
 594         if(c->uri && strcmp(u, c->uri) == 0) {
 595                 reload(c, &a);
 596         } else {
 597                 webkit_web_view_load_uri(c->view, u);
 598                 c->progress = 0;
 599                 c->title = copystr(&c->title, u);
 600                 g_free(u);
 601                 update(c);
 602         }
 603 }
 604
 605 static void
 606 navigate(Client *c, const Arg *arg) {
 607         int steps = *(int *)arg;
 608         webkit_web_view_go_back_or_forward(c->view, steps);
 609 }
 610
 611 static Client *
 612 newclient(void) {
 613         Client *c;
 614         WebKitWebSettings *settings;
 615         WebKitWebFrame *frame;
 616         GdkGeometry hints = { 1, 1 };
 617         char *uri, *ua;
 618
 619         if(!(c = calloc(1, sizeof(Client))))
 620                 die("Cannot malloc!\n");
 621
 622         /* Window */
 623         if(embed) {
 624                 c->win = gtk_plug_new(embed);
 625         } else {
 626                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 627
 628                 /* TA:  20091214:  Despite what the GNOME docs say, the ICCCM
 629                  * is always correct, so we should still call this function.
 630                  * But when doing so, we *must* differentiate between a
 631                  * WM_CLASS and a resource on the window.  By convention, the
 632                  * window class (WM_CLASS) is capped, while the resource is in
 633                  * lowercase.   Both these values come as a pair.
 634                  */
 635                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "Surf");
 636
 637                 /* TA:  20091214:  And set the role here as well -- so that
 638                  * sessions can pick this up.
 639                  */
 640                 gtk_window_set_role(GTK_WINDOW(c->win), "Surf");
 641         }
 642         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 643         g_signal_connect(G_OBJECT(c->win),
 644                         "destroy",
 645                         G_CALLBACK(destroywin), c);
 646         g_signal_connect(G_OBJECT(c->win),
 647                         "key-press-event",
 648                         G_CALLBACK(keypress), c);
 649
 650         /* Pane */
 651         c->pane = gtk_vpaned_new();
 652
 653         /* VBox */
 654         c->vbox = gtk_vbox_new(FALSE, 0);
 655         gtk_paned_pack1(GTK_PANED(c->pane), c->vbox, TRUE, TRUE);
 656
 657         /* Scrolled Window */
 658         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 659         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 660                         GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 661
 662         /* Webview */
 663         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 664         g_signal_connect(G_OBJECT(c->view),
 665                         "title-changed",
 666                         G_CALLBACK(titlechange), c);
 667         g_signal_connect(G_OBJECT(c->view),
 668                         "hovering-over-link",
 669                         G_CALLBACK(linkhover), c);
 670         g_signal_connect(G_OBJECT(c->view),
 671                         "create-web-view",
 672                         G_CALLBACK(createwindow), c);
 673         g_signal_connect(G_OBJECT(c->view),
 674                         "new-window-policy-decision-requested",
 675                         G_CALLBACK(decidewindow), c);
 676         g_signal_connect(G_OBJECT(c->view),
 677                         "mime-type-policy-decision-requested",
 678                         G_CALLBACK(decidedownload), c);
 679         g_signal_connect(G_OBJECT(c->view),
 680                         "window-object-cleared",
 681                         G_CALLBACK(windowobjectcleared), c);
 682         g_signal_connect(G_OBJECT(c->view),
 683                         "notify::load-status",
 684                         G_CALLBACK(loadstatuschange), c);
 685         g_signal_connect(G_OBJECT(c->view),
 686                         "notify::progress",
 687                         G_CALLBACK(progresschange), c);
 688         g_signal_connect(G_OBJECT(c->view),
 689                         "download-requested",
 690                         G_CALLBACK(initdownload), c);
 691         g_signal_connect(G_OBJECT(c->view),
 692                         "button-release-event",
 693                         G_CALLBACK(buttonrelease), c);
 694         g_signal_connect(G_OBJECT(c->view),
 695                         "populate-popup",
 696                         G_CALLBACK(populatepopup), c);
 697         g_signal_connect(G_OBJECT(c->view),
 698                         "resource-request-starting",
 699                         G_CALLBACK(beforerequest), c);
 700
 701         /* Arranging */
 702         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 703         gtk_container_add(GTK_CONTAINER(c->win), c->pane);
 704         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 705
 706         /* Setup */
 707         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE,
 708                         TRUE, 0, GTK_PACK_START);
 709         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 710         gtk_widget_show(c->pane);
 711         gtk_widget_show(c->vbox);
 712         gtk_widget_show(c->scroll);
 713         gtk_widget_show(GTK_WIDGET(c->view));
 714         gtk_widget_show(c->win);
 715         gtk_window_set_geometry_hints(GTK_WINDOW(c->win), NULL, &hints,
 716                         GDK_HINT_MIN_SIZE);
 717         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 718         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 719         webkit_web_view_set_full_content_zoom(c->view, TRUE);
 720
 721         frame = webkit_web_view_get_main_frame(c->view);
 722         runscript(frame);
 723         settings = webkit_web_view_get_settings(c->view);
 724         if(!(ua = getenv("SURF_USERAGENT")))
 725                 ua = useragent;
 726         g_object_set(G_OBJECT(settings), "user-agent", ua, NULL);
 727         uri = g_strconcat("file://", stylefile, NULL);
 728         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
 729         g_object_set(G_OBJECT(settings), "auto-load-images", loadimages,
 730                         NULL);
 731         g_object_set(G_OBJECT(settings), "enable-plugins", enableplugins,
 732                         NULL);
 733         g_object_set(G_OBJECT(settings), "enable-scripts", enablescripts,
 734                         NULL);
 735         g_object_set(G_OBJECT(settings), "enable-spatial-navigation",
 736                         enablespatialbrowsing, NULL);
 737         g_object_set(G_OBJECT(settings), "enable-developer-extras",
 738                         enableinspector, NULL);
 739
 740         if(enableinspector) {
 741                 c->inspector = WEBKIT_WEB_INSPECTOR(
 742                                 webkit_web_view_get_inspector(c->view));
 743                 g_signal_connect(G_OBJECT(c->inspector), "inspect-web-view",
 744                                 G_CALLBACK(inspector_new), c);
 745                 g_signal_connect(G_OBJECT(c->inspector), "show-window",
 746                                 G_CALLBACK(inspector_show), c);
 747                 g_signal_connect(G_OBJECT(c->inspector), "close-window",
 748                                 G_CALLBACK(inspector_close), c);
 749                 g_signal_connect(G_OBJECT(c->inspector), "finished",
 750                                 G_CALLBACK(inspector_finished), c);
 751                 c->isinspecting = false;
 752         }
 753
 754         g_free(uri);
 755
 756         setatom(c, AtomFind, "");
 757         setatom(c, AtomUri, "about:blank");
 758         if(hidebackground)
 759                 webkit_web_view_set_transparent(c->view, TRUE);
 760
 761         c->title = NULL;
 762         c->next = clients;
 763         clients = c;
 764
 765         if(showxid) {
 766                 gdk_display_sync(gtk_widget_get_display(c->win));
 767                 printf("%u\n",
 768                         (guint)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 769                 fflush(NULL);
 770                 if (fclose(stdout) != 0) {
 771                         die("Error closing stdout");
 772                 }
 773         }
 774
 775         return c;
 776 }
 777
 778 static void
 779 newwindow(Client *c, const Arg *arg, gboolean noembed) {
 780         guint i = 0;
 781         const char *cmd[10], *uri;
 782         const Arg a = { .v = (void *)cmd };
 783         char tmp[64];
 784
 785         cmd[i++] = argv0;
 786         if(embed && !noembed) {
 787                 cmd[i++] = "-e";
 788                 snprintf(tmp, LENGTH(tmp), "%u\n", (int)embed);
 789                 cmd[i++] = tmp;
 790         }
 791         if(!enablescripts)
 792                 cmd[i++] = "-s";
 793         if(!enableplugins)
 794                 cmd[i++] = "-p";
 795         if(!loadimages)
 796                 cmd[i++] = "-i";
 797         if(showxid)
 798                 cmd[i++] = "-x";
 799         cmd[i++] = "--";
 800         uri = arg->v ? (char *)arg->v : c->linkhover;
 801         if(uri)
 802                 cmd[i++] = uri;
 803         cmd[i++] = NULL;
 804         spawn(NULL, &a);
 805 }
 806
 807 static void
 808 populatepopup(WebKitWebView *web, GtkMenu *menu, Client *c) {
 809         GList *items = gtk_container_get_children(GTK_CONTAINER(menu));
 810
 811         for(GList *l = items; l; l = l->next) {
 812                 g_signal_connect(l->data, "activate", G_CALLBACK(popupactivate), c);
 813         }
 814
 815         g_list_free(items);
 816 }
 817
 818 static void
 819 popupactivate(GtkMenuItem *menu, Client *c) {
 820         /*
 821          * context-menu-action-2000     open link
 822          * context-menu-action-1        open link in window
 823          * context-menu-action-2        download linked file
 824          * context-menu-action-3        copy link location
 825          * context-menu-action-13       reload
 826          * context-menu-action-10       back
 827          * context-menu-action-11       forward
 828          * context-menu-action-12       stop
 829          */
 830
 831         GtkAction *a = NULL;
 832         const char *name;
 833         GtkClipboard *prisel;
 834
 835         a = gtk_activatable_get_related_action(GTK_ACTIVATABLE(menu));
 836         if(a == NULL)
 837                 return;
 838
 839         name = gtk_action_get_name(a);
 840         if(!g_strcmp0(name, "context-menu-action-3")) {
 841                 prisel = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
 842                 gtk_clipboard_set_text(prisel, c->linkhover, -1);
 843         }
 844 }
 845
 846 static void
 847 pasteuri(GtkClipboard *clipboard, const char *text, gpointer d) {
 848         Arg arg = {.v = text };
 849         if(text != NULL)
 850                 loaduri((Client *) d, &arg);
 851 }
 852
 853 static void
 854 print(Client *c, const Arg *arg) {
 855         webkit_web_frame_print(webkit_web_view_get_main_frame(c->view));
 856 }
 857
 858 static GdkFilterReturn
 859 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 860         Client *c = (Client *)d;
 861         XPropertyEvent *ev;
 862         Arg arg;
 863
 864         if(((XEvent *)e)->type == PropertyNotify) {
 865                 ev = &((XEvent *)e)->xproperty;
 866                 if(ev->state == PropertyNewValue) {
 867                         if(ev->atom == atoms[AtomFind]) {
 868                                 arg.b = TRUE;
 869                                 find(c, &arg);
 870                                 return GDK_FILTER_REMOVE;
 871                         }
 872                         else if(ev->atom == atoms[AtomGo]) {
 873                                 arg.v = getatom(c, AtomGo);
 874                                 loaduri(c, &arg);
 875                                 return GDK_FILTER_REMOVE;
 876                         }
 877                 }
 878         }
 879         return GDK_FILTER_CONTINUE;
 880 }
 881
 882 static void
 883 progresschange(WebKitWebView *view, GParamSpec *pspec, Client *c) {
 884         c->progress = webkit_web_view_get_progress(c->view) * 100;
 885         update(c);
 886 }
 887
 888 static void
 889 reload(Client *c, const Arg *arg) {
 890         gboolean nocache = *(gboolean *)arg;
 891         if(nocache) {
 892                  webkit_web_view_reload_bypass_cache(c->view);
 893         } else {
 894                  webkit_web_view_reload(c->view);
 895         }
 896 }
 897
 898 static void
 899 scroll_h(Client *c, const Arg *arg) {
 900         scroll(gtk_scrolled_window_get_hadjustment(
 901                                 GTK_SCROLLED_WINDOW(c->scroll)), arg);
 902 }
 903
 904 static void
 905 scroll_v(Client *c, const Arg *arg) {
 906         scroll(gtk_scrolled_window_get_vadjustment(
 907                                 GTK_SCROLLED_WINDOW(c->scroll)), arg);
 908 }
 909
 910 static void
 911 scroll(GtkAdjustment *a, const Arg *arg) {
 912         gdouble v;
 913
 914         v = gtk_adjustment_get_value(a);
 915         switch (arg->i){
 916         case +10000:
 917         case -10000:
 918                 v += gtk_adjustment_get_page_increment(a) *
 919                         (arg->i / 10000);
 920                 break;
 921         case +20000:
 922         case -20000:
 923         default:
 924                 v += gtk_adjustment_get_step_increment(a) * arg->i;
 925         }
 926
 927         v = MAX(v, 0.0);
 928         v = MIN(v, gtk_adjustment_get_upper(a) -
 929                         gtk_adjustment_get_page_size(a));
 930         gtk_adjustment_set_value(a, v);
 931 }
 932
 933 static void
 934 setatom(Client *c, int a, const char *v) {
 935         XSync(dpy, False);
 936         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window),
 937                         atoms[a], XA_STRING, 8, PropModeReplace,
 938                         (unsigned char *)v, strlen(v) + 1);
 939 }
 940
 941 static void
 942 setup(void) {
 943         char *proxy;
 944         char *new_proxy;
 945         SoupURI *puri;
 946         SoupSession *s;
 947
 948         /* clean up any zombies immediately */
 949         sigchld(0);
 950         gtk_init(NULL, NULL);
 951
 952         dpy = GDK_DISPLAY();
 953
 954         /* atoms */
 955         atoms[AtomFind] = XInternAtom(dpy, "_SURF_FIND", False);
 956         atoms[AtomGo] = XInternAtom(dpy, "_SURF_GO", False);
 957         atoms[AtomUri] = XInternAtom(dpy, "_SURF_URI", False);
 958
 959         /* dirs and files */
 960         cookiefile = buildpath(cookiefile);
 961         scriptfile = buildpath(scriptfile);
 962         stylefile = buildpath(stylefile);
 963
 964         /* request handler */
 965         s = webkit_get_default_session();
 966
 967         /* cookie jar */
 968         soup_session_add_feature(s,
 969                         SOUP_SESSION_FEATURE(cookiejar_new(cookiefile,
 970                                         FALSE)));
 971
 972         /* ssl */
 973         g_object_set(G_OBJECT(s), "ssl-ca-file", cafile, NULL);
 974         g_object_set(G_OBJECT(s), "ssl-strict", strictssl, NULL);
 975
 976         /* proxy */
 977         if((proxy = getenv("http_proxy")) && strcmp(proxy, "")) {
 978                 new_proxy = g_strrstr(proxy, "http://") ? g_strdup(proxy) :
 979                         g_strdup_printf("http://%s", proxy);
 980                 puri = soup_uri_new(new_proxy);
 981                 g_object_set(G_OBJECT(s), "proxy-uri", puri, NULL);
 982                 soup_uri_free(puri);
 983                 g_free(new_proxy);
 984                 usingproxy = 1;
 985         }
 986 }
 987
 988 static void
 989 sigchld(int unused) {
 990         if(signal(SIGCHLD, sigchld) == SIG_ERR)
 991                 die("Can't install SIGCHLD handler");
 992         while(0 < waitpid(-1, NULL, WNOHANG));
 993 }
 994
 995 static void
 996 source(Client *c, const Arg *arg) {
 997         Arg a = { .b = FALSE };
 998         gboolean s;
 999
1000         s = webkit_web_view_get_view_source_mode(c->view);
1001         webkit_web_view_set_view_source_mode(c->view, !s);
1002         reload(c, &a);
1003 }
1004
1005 static void
1006 spawn(Client *c, const Arg *arg) {
1007         if(fork() == 0) {
1008                 if(dpy)
1009                         close(ConnectionNumber(dpy));
1010                 setsid();
1011                 execvp(((char **)arg->v)[0], (char **)arg->v);
1012                 fprintf(stderr, "surf: execvp %s", ((char **)arg->v)[0]);
1013                 perror(" failed");
1014                 exit(0);
1015         }
1016 }
1017
1018 static void
1019 eval(Client *c, const Arg *arg) {
1020         WebKitWebFrame *frame = webkit_web_view_get_main_frame(c->view);
1021         evalscript(webkit_web_frame_get_global_context(frame),
1022                         ((char **)arg->v)[0], "");
1023 }
1024
1025 static void
1026 stop(Client *c, const Arg *arg) {
1027         webkit_web_view_stop_loading(c->view);
1028 }
1029
1030 static void
1031 titlechange(WebKitWebView *v, WebKitWebFrame *f, const char *t, Client *c) {
1032         c->title = copystr(&c->title, t);
1033         update(c);
1034 }
1035
1036 static void
1037 toggle(Client *c, const Arg *arg) {
1038         WebKitWebSettings *settings;
1039         char *name = (char *)arg->v;
1040         gboolean value;
1041         Arg a = { .b = FALSE };
1042
1043         settings = webkit_web_view_get_settings(c->view);
1044         g_object_get(G_OBJECT(settings), name, &value, NULL);
1045         g_object_set(G_OBJECT(settings), name, !value, NULL);
1046
1047         reload(c,&a);
1048 }
1049
1050 static void
1051 togglestyle(Client *c, const Arg *arg) {
1052         WebKitWebSettings *settings;
1053         char *uri;
1054
1055         settings = webkit_web_view_get_settings(c->view);
1056         g_object_get(G_OBJECT(settings), "user-stylesheet-uri", &uri, NULL);
1057         uri = uri[0] ? g_strdup("") : g_strconcat("file://", stylefile, NULL);
1058         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
1059
1060         update(c);
1061 }
1062
1063 static void
1064 gettogglestat(Client *c){
1065         gboolean value;
1066         char *uri;
1067         WebKitWebSettings *settings = webkit_web_view_get_settings(c->view);
1068
1069         g_object_get(G_OBJECT(settings), "enable-caret-browsing",
1070                         &value, NULL);
1071         togglestat[0] = value? 'C': 'c';
1072
1073         g_object_get(G_OBJECT(settings), "auto-load-images", &value, NULL);
1074         togglestat[1] = value? 'I': 'i';
1075
1076         g_object_get(G_OBJECT(settings), "enable-scripts", &value, NULL);
1077         togglestat[2] = value? 'S': 's';
1078
1079         g_object_get(G_OBJECT(settings), "enable-plugins", &value, NULL);
1080         togglestat[3] = value? 'V': 'v';
1081
1082         g_object_get(G_OBJECT(settings), "user-stylesheet-uri", &uri, NULL);
1083         togglestat[4] = uri[0] ? 'M': 'm';
1084
1085         togglestat[5] = '\0';
1086 }
1087
1088 static void
1089 getpagestat(Client *c) {
1090         const char *uri = geturi(c);
1091
1092         if(strstr(uri, "https://") == uri) {
1093                 pagestat[0] = c->sslfailed ? 'U' : 'T';
1094         } else {
1095                 pagestat[0] = '-';
1096         }
1097
1098         pagestat[1] = usingproxy ? 'P' : '-';
1099         pagestat[2] = '\0';
1100
1101 }
1102
1103 static void
1104 update(Client *c) {
1105         char *t;
1106
1107         gettogglestat(c);
1108         getpagestat(c);
1109
1110         if(c->linkhover) {
1111                 t = g_strdup_printf("%s:%s | %s", togglestat, pagestat, c->linkhover);
1112         } else if(c->progress != 100) {
1113                 t = g_strdup_printf("[%i%%] %s:%s | %s", c->progress, togglestat,
1114                         pagestat, c->title);
1115         } else {
1116                 t = g_strdup_printf("%s:%s | %s", togglestat, pagestat, c->title);
1117         }
1118
1119         gtk_window_set_title(GTK_WINDOW(c->win), t);
1120         g_free(t);
1121 }
1122
1123 static void
1124 updatewinid(Client *c) {
1125         snprintf(winid, LENGTH(winid), "%u",
1126                         (int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
1127 }
1128
1129 static void
1130 usage(void) {
1131         die("usage: %s [-inpsvx] [-c cookiefile] [-e xid] [-r scriptfile]"
1132                 " [-t stylefile] [-u useragent] [uri]\n", basename(argv0));
1133 }
1134
1135 static void
1136 windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js,
1137                 JSObjectRef win, Client *c) {
1138         runscript(frame);
1139 }
1140
1141 static void
1142 zoom(Client *c, const Arg *arg) {
1143         c->zoomed = TRUE;
1144         if(arg->i < 0) {
1145                 /* zoom out */
1146                 webkit_web_view_zoom_out(c->view);
1147         } else if(arg->i > 0) {
1148                 /* zoom in */
1149                 webkit_web_view_zoom_in(c->view);
1150         } else {
1151                 /* reset */
1152                 c->zoomed = FALSE;
1153                 webkit_web_view_set_zoom_level(c->view, 1.0);
1154         }
1155 }
1156
1157 int
1158 main(int argc, char *argv[]) {
1159         Arg arg;
1160
1161         memset(&arg, 0, sizeof(arg));
1162
1163         /* command line args */
1164         ARGBEGIN {
1165         case 'c':
1166                 cookiefile = EARGF(usage());
1167                 break;
1168         case 'e':
1169                 embed = strtol(EARGF(usage()), NULL, 0);
1170                 break;
1171         case 'i':
1172                 loadimages = 0;
1173                 break;
1174         case 'n':
1175                 enableinspector = 0;
1176                 break;
1177         case 'p':
1178                 enableplugins = 0;
1179                 break;
1180         case 'r':
1181                 scriptfile = EARGF(usage());
1182                 break;
1183         case 's':
1184                 enablescripts = 0;
1185                 break;
1186         case 't':
1187                 stylefile = EARGF(usage());
1188                 break;
1189         case 'u':
1190                 useragent = EARGF(usage());
1191                 break;
1192         case 'v':
1193                 die("surf-"VERSION", ©2009-2012 surf engineers, "
1194                                 "see LICENSE for details\n");
1195         case 'x':
1196                 showxid = TRUE;
1197                 break;
1198         default:
1199                 usage();
1200         } ARGEND;
1201         if(argc > 0)
1202                 arg.v = argv[0];
1203
1204         setup();
1205         newclient();
1206         if(arg.v)
1207                 loaduri(clients, &arg);
1208
1209         gtk_main();
1210         cleanup();
1211
1212         return EXIT_SUCCESS;
1213 }
1214