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 & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
  25
  26 enum { AtomFind, AtomGo, AtomUri, AtomLast };
  27
  28 typedef union Arg Arg;
  29 union Arg {
  30         gboolean b;
  31         gint i;
  32         const void *v;
  33 };
  34
  35 typedef struct Client {
  36         GtkWidget *win, *scroll, *vbox, *indicator;
  37         WebKitWebView *view;
  38         char *title, *linkhover;
  39         const char *uri, *needle;
  40         gint progress;
  41         gboolean sslfailed;
  42         struct Client *next;
  43         gboolean zoomed;
  44 } Client;
  45
  46 typedef struct {
  47         char *label;
  48         void (*func)(Client *c, const Arg *arg);
  49         const Arg arg;
  50 } Item;
  51
  52 typedef struct {
  53         guint mod;
  54         guint keyval;
  55         void (*func)(Client *c, const Arg *arg);
  56         const Arg arg;
  57 } Key;
  58
  59 static Display *dpy;
  60 static Atom atoms[AtomLast];
  61 static Client *clients = NULL;
  62 static GdkNativeWindow embed = 0;
  63 static gboolean showxid = FALSE;
  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 gboolean buttonrelease(WebKitWebView *web, GdkEventButton *e, GList *gl);
  70 static void cleanup(void);
  71 static void clipboard(Client *c, const Arg *arg);
  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 drawindicator(Client *c);
  80 static gboolean exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c);
  81 static void find(Client *c, const Arg *arg);
  82 static const char *getatom(Client *c, int a);
  83 static const char *getcookies(SoupURI *uri);
  84 static char *geturi(Client *c);
  85 void gotheaders(SoupMessage *msg, gpointer user_data);
  86 static gboolean initdownload(WebKitWebView *v, WebKitDownload *o, Client *c);
  87 static gboolean keypress(GtkWidget *w, GdkEventKey *ev, Client *c);
  88 static void linkhover(WebKitWebView *v, const char* t, const char* l, Client *c);
  89 static void loadstatuschange(WebKitWebView *view, GParamSpec *pspec, Client *c);
  90 static void loaduri(Client *c, const Arg *arg);
  91 static void navigate(Client *c, const Arg *arg);
  92 static Client *newclient(void);
  93 static void newwindow(Client *c, const Arg *arg, gboolean noembed);
  94 static void newrequest(SoupSession *s, SoupMessage *msg, gpointer v);
  95 static void pasteuri(GtkClipboard *clipboard, const char *text, gpointer d);
  96 static void print(Client *c, const Arg *arg);
  97 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event, gpointer d);
  98 static void progresschange(WebKitWebView *view, GParamSpec *pspec, Client *c);
  99 static void reload(Client *c, const Arg *arg);
 100 static void scroll_h(Client *c, const Arg *arg);
 101 static void scroll_v(Client *c, const Arg *arg);
 102 static void scroll(GtkAdjustment *a, const Arg *arg);
 103 static void setatom(Client *c, int a, const char *v);
 104 static void setcookie(SoupCookie *c);
 105 static void setup(void);
 106 static void sigchld(int unused);
 107 static void source(Client *c, const Arg *arg);
 108 static void spawn(Client *c, const Arg *arg);
 109 static void eval(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 updatewinid(Client *c);
 114 static void usage(void);
 115 static void windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c);
 116 static void zoom(Client *c, const Arg *arg);
 117
 118 /* configuration, allows nested code to access above variables */
 119 #include "config.h"
 120
 121 char *
 122 buildpath(const char *path) {
 123         char *apath, *p;
 124         FILE *f;
 125
 126         /* creating directory */
 127         if(path[0] == '/')
 128                 apath = g_strdup(path);
 129         else
 130                 apath = g_strconcat(g_get_home_dir(), "/", path, NULL);
 131         if((p = strrchr(apath, '/'))) {
 132                 *p = '\0';
 133                 g_mkdir_with_parents(apath, 0700);
 134                 g_chmod(apath, 0700); /* in case it existed */
 135                 *p = '/';
 136         }
 137         /* creating file (gives error when apath ends with "/") */
 138         if((f = fopen(apath, "a"))) {
 139                 g_chmod(apath, 0600); /* always */
 140                 fclose(f);
 141         }
 142         return apath;
 143 }
 144
 145 static gboolean
 146 buttonrelease(WebKitWebView *web, GdkEventButton *e, GList *gl) {
 147         WebKitHitTestResultContext context;
 148         WebKitHitTestResult *result = webkit_web_view_get_hit_test_result(web, e);
 149         Arg arg;
 150
 151         g_object_get(result, "context", &context, NULL);
 152         if(context & WEBKIT_HIT_TEST_RESULT_CONTEXT_LINK) {
 153                 if(e->button == 2) {
 154                         g_object_get(result, "link-uri", &arg.v, NULL);
 155                         newwindow(NULL, &arg, e->state & GDK_CONTROL_MASK);
 156                         return true;
 157                 }
 158         }
 159         return false;
 160 }
 161
 162 void
 163 cleanup(void) {
 164         while(clients)
 165                 destroyclient(clients);
 166         g_free(cookiefile);
 167         g_free(scriptfile);
 168         g_free(stylefile);
 169 }
 170
 171 void
 172 evalscript(JSContextRef js, char *script, char* scriptname) {
 173         JSStringRef jsscript, jsscriptname;
 174         JSValueRef exception = NULL;
 175
 176         jsscript = JSStringCreateWithUTF8CString(script);
 177         jsscriptname = JSStringCreateWithUTF8CString(scriptname);
 178         JSEvaluateScript(js, jsscript, JSContextGetGlobalObject(js), jsscriptname, 0, &exception);
 179         JSStringRelease(jsscript);
 180         JSStringRelease(jsscriptname);
 181 }
 182
 183 void
 184 runscript(WebKitWebFrame *frame) {
 185         char *script;
 186         GError *error;
 187
 188         if(g_file_get_contents(scriptfile, &script, NULL, &error)) {
 189                 evalscript(webkit_web_frame_get_global_context(frame), script, scriptfile);
 190         }
 191 }
 192
 193 void
 194 clipboard(Client *c, const Arg *arg) {
 195         gboolean paste = *(gboolean *)arg;
 196
 197         if(paste)
 198                 gtk_clipboard_request_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), pasteuri, c);
 199         else
 200                 gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), c->linkhover ? c->linkhover : geturi(c), -1);
 201 }
 202
 203 char *
 204 copystr(char **str, const char *src) {
 205         char *tmp;
 206         tmp = g_strdup(src);
 207
 208         if(str && *str) {
 209                 g_free(*str);
 210                 *str = tmp;
 211         }
 212         return tmp;
 213 }
 214
 215 WebKitWebView *
 216 createwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c) {
 217         Client *n = newclient();
 218         return n->view;
 219 }
 220
 221 gboolean
 222 decidedownload(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r, gchar *m,  WebKitWebPolicyDecision *p, Client *c) {
 223         if(!webkit_web_view_can_show_mime_type(v, m)) {
 224                 webkit_web_policy_decision_download(p);
 225                 return TRUE;
 226         }
 227         return FALSE;
 228 }
 229
 230 gboolean
 231 decidewindow(WebKitWebView *view, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c) {
 232         Arg arg;
 233
 234         if(webkit_web_navigation_action_get_reason(n) == WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED) {
 235                 webkit_web_policy_decision_ignore(p);
 236                 arg.v = (void *)webkit_network_request_get_uri(r);
 237                 newwindow(NULL, &arg, 0);
 238                 return TRUE;
 239         }
 240         return FALSE;
 241 }
 242
 243 void
 244 destroyclient(Client *c) {
 245         Client *p;
 246
 247         webkit_web_view_stop_loading(c->view);
 248         gtk_widget_destroy(c->indicator);
 249         gtk_widget_destroy(GTK_WIDGET(c->view));
 250         gtk_widget_destroy(c->scroll);
 251         gtk_widget_destroy(c->vbox);
 252         gtk_widget_destroy(c->win);
 253
 254         for(p = clients; p && p->next != c; p = p->next);
 255         if(p)
 256                 p->next = c->next;
 257         else
 258                 clients = c->next;
 259         free(c);
 260         if(clients == NULL)
 261                 gtk_main_quit();
 262 }
 263
 264 void
 265 destroywin(GtkWidget* w, Client *c) {
 266         destroyclient(c);
 267 }
 268
 269 void
 270 die(char *str) {
 271         fputs(str, stderr);
 272         exit(EXIT_FAILURE);
 273 }
 274
 275 void
 276 drawindicator(Client *c) {
 277         gint width;
 278         const char *uri;
 279         GtkWidget *w;
 280         GdkGC *gc;
 281         GdkColor fg;
 282
 283         uri = geturi(c);
 284         w = c->indicator;
 285         width = c->progress * w->allocation.width / 100;
 286         gc = gdk_gc_new(w->window);
 287         if(strstr(uri, "https://") == uri)
 288                 gdk_color_parse(c->sslfailed ?
 289                                 progress_untrust : progress_trust, &fg);
 290         else
 291                 gdk_color_parse(progress, &fg);
 292         gdk_gc_set_rgb_fg_color(gc, &fg);
 293         gdk_draw_rectangle(w->window,
 294                         w->style->bg_gc[GTK_WIDGET_STATE(w)],
 295                         TRUE, 0, 0, w->allocation.width, w->allocation.height);
 296         gdk_draw_rectangle(w->window, gc, TRUE, 0, 0, width,
 297                         w->allocation.height);
 298         g_object_unref(gc);
 299 }
 300
 301 gboolean
 302 exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c) {
 303         drawindicator(c);
 304         return TRUE;
 305 }
 306
 307 void
 308 find(Client *c, const Arg *arg) {
 309         const char *s;
 310
 311         s = getatom(c, AtomFind);
 312         gboolean forward = *(gboolean *)arg;
 313         webkit_web_view_search_text(c->view, s, FALSE, forward, TRUE);
 314 }
 315
 316 const char *
 317 getcookies(SoupURI *uri) {
 318         const char *c;
 319         SoupCookieJar *j = soup_cookie_jar_text_new(cookiefile, TRUE);
 320         c = soup_cookie_jar_get_cookies(j, uri, TRUE);
 321         g_object_unref(j);
 322         return c;
 323 }
 324
 325 const char *
 326 getatom(Client *c, int a) {
 327         static char buf[BUFSIZ];
 328         Atom adummy;
 329         int idummy;
 330         unsigned long ldummy;
 331         unsigned char *p = NULL;
 332
 333         XGetWindowProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window),
 334                         atoms[a], 0L, BUFSIZ, False, XA_STRING,
 335                         &adummy, &idummy, &ldummy, &ldummy, &p);
 336         if(p)
 337                 strncpy(buf, (char *)p, LENGTH(buf)-1);
 338         else
 339                 buf[0] = '\0';
 340         XFree(p);
 341         return buf;
 342 }
 343
 344 char *
 345 geturi(Client *c) {
 346         char *uri;
 347
 348         if(!(uri = (char *)webkit_web_view_get_uri(c->view)))
 349                 uri = "about:blank";
 350         return uri;
 351 }
 352
 353 void
 354 gotheaders(SoupMessage *msg, gpointer v) {
 355         GSList *l, *p;
 356
 357         for(p = l = soup_cookies_from_response(msg); p;
 358                 p = g_slist_next(p))  {
 359                 setcookie((SoupCookie *)p->data);
 360         }
 361         soup_cookies_free(l);
 362 }
 363
 364 gboolean
 365 initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
 366         Arg arg;
 367
 368         updatewinid(c);
 369         arg = (Arg)DOWNLOAD((char *)webkit_download_get_uri(o));
 370         spawn(c, &arg);
 371         return FALSE;
 372 }
 373
 374 gboolean
 375 keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
 376         guint i;
 377         gboolean processed = FALSE;
 378
 379         updatewinid(c);
 380         for(i = 0; i < LENGTH(keys); i++) {
 381                 if(gdk_keyval_to_lower(ev->keyval) == keys[i].keyval
 382                                 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
 383                                 && keys[i].func) {
 384                         keys[i].func(c, &(keys[i].arg));
 385                         processed = TRUE;
 386                 }
 387         }
 388         return processed;
 389 }
 390
 391 void
 392 linkhover(WebKitWebView *v, const char* t, const char* l, Client *c) {
 393         if(l) {
 394                 c->linkhover = copystr(&c->linkhover, l);
 395         }
 396         else if(c->linkhover) {
 397                 free(c->linkhover);
 398                 c->linkhover = NULL;
 399         }
 400         update(c);
 401 }
 402
 403 void
 404 loadstatuschange(WebKitWebView *view, GParamSpec *pspec, Client *c) {
 405         WebKitWebFrame *frame;
 406         WebKitWebDataSource *src;
 407         WebKitNetworkRequest *request;
 408         SoupMessage *msg;
 409         char *uri;
 410
 411         switch(webkit_web_view_get_load_status (c->view)) {
 412         case WEBKIT_LOAD_COMMITTED:
 413                 uri = geturi(c);
 414                 if(strstr(uri, "https://") == uri) {
 415                         frame = webkit_web_view_get_main_frame(c->view);
 416                         src = webkit_web_frame_get_data_source(frame);
 417                         request = webkit_web_data_source_get_request(src);
 418                         msg = webkit_network_request_get_message(request);
 419                         c->sslfailed = soup_message_get_flags(msg)
 420                                        ^ SOUP_MESSAGE_CERTIFICATE_TRUSTED;
 421                 }
 422                 setatom(c, AtomUri, uri);
 423                 break;
 424         case WEBKIT_LOAD_FINISHED:
 425                 c->progress = 100;
 426                 update(c);
 427                 break;
 428         default:
 429                 break;
 430         }
 431 }
 432
 433 void
 434 loaduri(Client *c, const Arg *arg) {
 435         char *u;
 436         const char *uri = (char *)arg->v;
 437         Arg a = { .b = FALSE };
 438
 439         if(strcmp(uri, "") == 0)
 440                 return;
 441         u = g_strrstr(uri, "://") ? g_strdup(uri)
 442                 : g_strdup_printf("http://%s", uri);
 443         /* prevents endless loop */
 444         if(c->uri && strcmp(u, c->uri) == 0) {
 445                 reload(c, &a);
 446         }
 447         else {
 448                 webkit_web_view_load_uri(c->view, u);
 449                 c->progress = 0;
 450                 c->title = copystr(&c->title, u);
 451                 g_free(u);
 452                 update(c);
 453         }
 454 }
 455
 456 void
 457 navigate(Client *c, const Arg *arg) {
 458         int steps = *(int *)arg;
 459         webkit_web_view_go_back_or_forward(c->view, steps);
 460 }
 461
 462 Client *
 463 newclient(void) {
 464         Client *c;
 465         WebKitWebSettings *settings;
 466         WebKitWebFrame *frame;
 467         GdkGeometry hints = { 1, 1 };
 468         char *uri, *ua;
 469
 470         if(!(c = calloc(1, sizeof(Client))))
 471                 die("Cannot malloc!\n");
 472         /* Window */
 473         if(embed) {
 474                 c->win = gtk_plug_new(embed);
 475         }
 476         else {
 477                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 478                 /* TA:  20091214:  Despite what the GNOME docs say, the ICCCM
 479                  * is always correct, so we should still call this function.
 480                  * But when doing so, we *must* differentiate between a
 481                  * WM_CLASS and a resource on the window.  By convention, the
 482                  * window class (WM_CLASS) is capped, while the resource is in
 483                  * lowercase.   Both these values come as a pair.
 484                  */
 485                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "Surf");
 486
 487                 /* TA:  20091214:  And set the role here as well -- so that
 488                  * sessions can pick this up.
 489                  */
 490                 gtk_window_set_role(GTK_WINDOW(c->win), "Surf");
 491         }
 492         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 493         g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(destroywin), c);
 494         g_signal_connect(G_OBJECT(c->win), "key-press-event", G_CALLBACK(keypress), c);
 495
 496         /* VBox */
 497         c->vbox = gtk_vbox_new(FALSE, 0);
 498
 499         /* Scrolled Window */
 500         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 501         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 502                         GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 503
 504         /* Webview */
 505         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 506         g_signal_connect(G_OBJECT(c->view), "title-changed", G_CALLBACK(titlechange), c);
 507         g_signal_connect(G_OBJECT(c->view), "hovering-over-link", G_CALLBACK(linkhover), c);
 508         g_signal_connect(G_OBJECT(c->view), "create-web-view", G_CALLBACK(createwindow), c);
 509         g_signal_connect(G_OBJECT(c->view), "new-window-policy-decision-requested", G_CALLBACK(decidewindow), c);
 510         g_signal_connect(G_OBJECT(c->view), "mime-type-policy-decision-requested", G_CALLBACK(decidedownload), c);
 511         g_signal_connect(G_OBJECT(c->view), "window-object-cleared", G_CALLBACK(windowobjectcleared), c);
 512         g_signal_connect(G_OBJECT(c->view), "notify::load-status", G_CALLBACK(loadstatuschange), c);
 513         g_signal_connect(G_OBJECT(c->view), "notify::progress", G_CALLBACK(progresschange), c);
 514         g_signal_connect(G_OBJECT(c->view), "download-requested", G_CALLBACK(initdownload), c);
 515         g_signal_connect(G_OBJECT(c->view), "button-release-event", G_CALLBACK(buttonrelease), c);
 516
 517         /* Indicator */
 518         c->indicator = gtk_drawing_area_new();
 519         gtk_widget_set_size_request(c->indicator, 0, 2);
 520         g_signal_connect (G_OBJECT (c->indicator), "expose_event",
 521                         G_CALLBACK (exposeindicator), c);
 522
 523         /* Arranging */
 524         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 525         gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 526         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 527         gtk_container_add(GTK_CONTAINER(c->vbox), c->indicator);
 528
 529         /* Setup */
 530         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->indicator, FALSE, FALSE, 0, GTK_PACK_START);
 531         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE, TRUE, 0, GTK_PACK_START);
 532         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 533         gtk_widget_show(c->vbox);
 534         gtk_widget_show(c->indicator);
 535         gtk_widget_show(c->scroll);
 536         gtk_widget_show(GTK_WIDGET(c->view));
 537         gtk_widget_show(c->win);
 538         gtk_window_set_geometry_hints(GTK_WINDOW(c->win), NULL, &hints, GDK_HINT_MIN_SIZE);
 539         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 540         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 541         webkit_web_view_set_full_content_zoom(c->view, TRUE);
 542         frame = webkit_web_view_get_main_frame(c->view);
 543         runscript(frame);
 544         settings = webkit_web_view_get_settings(c->view);
 545         if(!(ua = getenv("SURF_USERAGENT")))
 546                 ua = useragent;
 547         g_object_set(G_OBJECT(settings), "user-agent", ua, NULL);
 548         uri = g_strconcat("file://", stylefile, NULL);
 549         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
 550         g_object_set(G_OBJECT(settings), "auto-load-images", loadimage, NULL);
 551         g_object_set(G_OBJECT(settings), "enable-plugins", plugin, NULL);
 552         g_object_set(G_OBJECT(settings), "enable-scripts", script, NULL);
 553         g_object_set(G_OBJECT(settings), "enable-spatial-navigation", SPATIAL_BROWSING, NULL);
 554
 555         g_free(uri);
 556
 557         setatom(c, AtomFind, "");
 558         setatom(c, AtomUri, "about:blank");
 559         if(HIDE_BACKGROUND)
 560                 webkit_web_view_set_transparent(c->view, TRUE);
 561
 562         c->title = NULL;
 563         c->next = clients;
 564         clients = c;
 565         if(showxid) {
 566                 gdk_display_sync(gtk_widget_get_display(c->win));
 567                 printf("%u\n", (guint)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 568                 fflush(NULL);
 569                 if (fclose(stdout) != 0) {
 570                         die("Error closing stdout");
 571                 }
 572         }
 573         return c;
 574 }
 575
 576 void
 577 newrequest(SoupSession *s, SoupMessage *msg, gpointer v) {
 578         SoupMessageHeaders *h = msg->request_headers;
 579         SoupURI *uri;
 580         const char *c;
 581
 582         soup_message_headers_remove(h, "Cookie");
 583         uri = soup_message_get_uri(msg);
 584         if((c = getcookies(uri)))
 585                 soup_message_headers_append(h, "Cookie", c);
 586         g_signal_connect_after(G_OBJECT(msg), "got-headers", G_CALLBACK(gotheaders), NULL);
 587 }
 588
 589 void
 590 newwindow(Client *c, const Arg *arg, gboolean noembed) {
 591         guint i = 0;
 592         const char *cmd[10], *uri;
 593         const Arg a = { .v = (void *)cmd };
 594         char tmp[64];
 595
 596         cmd[i++] = progname;
 597         if(embed && !noembed) {
 598                 cmd[i++] = "-e";
 599                 snprintf(tmp, LENGTH(tmp), "%u\n", (int)embed);
 600                 cmd[i++] = tmp;
 601         }
 602         if(!script)
 603                 cmd[i++] = "-s";
 604         if(!plugin)
 605                 cmd[i++] = "-p";
 606         if(!loadimage)
 607                 cmd[i++] = "-i";
 608         if(showxid)
 609                 cmd[i++] = "-x";
 610         cmd[i++] = "--";
 611         uri = arg->v ? (char *)arg->v : c->linkhover;
 612         if(uri)
 613                 cmd[i++] = uri;
 614         cmd[i++] = NULL;
 615         spawn(NULL, &a);
 616 }
 617
 618 void
 619 pasteuri(GtkClipboard *clipboard, const char *text, gpointer d) {
 620         Arg arg = {.v = text };
 621         if(text != NULL)
 622                 loaduri((Client *) d, &arg);
 623 }
 624
 625 void
 626 print(Client *c, const Arg *arg) {
 627         webkit_web_frame_print(webkit_web_view_get_main_frame(c->view));
 628 }
 629
 630 GdkFilterReturn
 631 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 632         Client *c = (Client *)d;
 633         XPropertyEvent *ev;
 634         Arg arg;
 635
 636         if(((XEvent *)e)->type == PropertyNotify) {
 637                 ev = &((XEvent *)e)->xproperty;
 638                 if(ev->state == PropertyNewValue) {
 639                         if(ev->atom == atoms[AtomFind]) {
 640                                 arg.b = TRUE;
 641                                 find(c, &arg);
 642                                 return GDK_FILTER_REMOVE;
 643                         }
 644                         else if(ev->atom == atoms[AtomGo]) {
 645                                 arg.v = getatom(c, AtomGo);
 646                                 loaduri(c, &arg);
 647                                 return GDK_FILTER_REMOVE;
 648                         }
 649                 }
 650         }
 651         return GDK_FILTER_CONTINUE;
 652 }
 653
 654 void
 655 progresschange(WebKitWebView *view, GParamSpec *pspec, Client *c) {
 656         c->progress = webkit_web_view_get_progress(c->view) * 100;
 657         update(c);
 658 }
 659
 660 void
 661 reload(Client *c, const Arg *arg) {
 662         gboolean nocache = *(gboolean *)arg;
 663         if(nocache)
 664                  webkit_web_view_reload_bypass_cache(c->view);
 665         else
 666                  webkit_web_view_reload(c->view);
 667 }
 668
 669 void
 670 scroll_h(Client *c, const Arg *arg) {
 671         scroll(gtk_scrolled_window_get_hadjustment(
 672                                 GTK_SCROLLED_WINDOW(c->scroll)), arg);
 673 }
 674
 675 void
 676 scroll_v(Client *c, const Arg *arg) {
 677         scroll(gtk_scrolled_window_get_vadjustment(
 678                                 GTK_SCROLLED_WINDOW(c->scroll)), arg);
 679 }
 680
 681 void
 682 scroll(GtkAdjustment *a, const Arg *arg) {
 683         gdouble v;
 684
 685         v = gtk_adjustment_get_value(a);
 686         switch (arg->i){
 687         case +10000:
 688         case -10000:
 689                 v += gtk_adjustment_get_page_increment(a) *
 690                         (arg->i / 10000);
 691                 break;
 692         case +20000:
 693         case -20000:
 694         default:
 695                 v += gtk_adjustment_get_step_increment(a) * arg->i;
 696         }
 697
 698         v = MAX(v, 0.0);
 699         v = MIN(v, gtk_adjustment_get_upper(a) -
 700                         gtk_adjustment_get_page_size(a));
 701         gtk_adjustment_set_value(a, v);
 702 }
 703
 704 void
 705 setcookie(SoupCookie *c) {
 706         int lock;
 707
 708         lock = open(cookiefile, 0);
 709         flock(lock, LOCK_EX);
 710         SoupDate *e;
 711         SoupCookieJar *j = soup_cookie_jar_text_new(cookiefile, FALSE);
 712         c = soup_cookie_copy(c);
 713         if(c->expires == NULL && sessiontime) {
 714                 e = soup_date_new_from_time_t(time(NULL) + sessiontime);
 715                 soup_cookie_set_expires(c, e);
 716         }
 717         soup_cookie_jar_add_cookie(j, c);
 718         g_object_unref(j);
 719         flock(lock, LOCK_UN);
 720         close(lock);
 721 }
 722
 723 void
 724 setatom(Client *c, int a, const char *v) {
 725         XSync(dpy, False);
 726         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window), atoms[a],
 727                         XA_STRING, 8, PropModeReplace, (unsigned char *)v,
 728                         strlen(v) + 1);
 729 }
 730
 731 void
 732 setup(void) {
 733         char *proxy;
 734         char *new_proxy;
 735         SoupURI *puri;
 736         SoupSession *s;
 737
 738         /* clean up any zombies immediately */
 739         sigchld(0);
 740         gtk_init(NULL, NULL);
 741         if (!g_thread_supported())
 742                 g_thread_init(NULL);
 743
 744         dpy = GDK_DISPLAY();
 745         s = webkit_get_default_session();
 746
 747         /* atoms */
 748         atoms[AtomFind] = XInternAtom(dpy, "_SURF_FIND", False);
 749         atoms[AtomGo] = XInternAtom(dpy, "_SURF_GO", False);
 750         atoms[AtomUri] = XInternAtom(dpy, "_SURF_URI", False);
 751
 752         /* dirs and files */
 753         cookiefile = buildpath(cookiefile);
 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         /* ssl */
 764         g_object_set(G_OBJECT(s), "ssl-ca-file", cafile, NULL);
 765         g_object_set(G_OBJECT(s), "ssl-strict", strictssl, NULL);
 766
 767         /* proxy */
 768         if((proxy = getenv("http_proxy")) && strcmp(proxy, "")) {
 769                 new_proxy = g_strrstr(proxy, "http://") ? g_strdup(proxy) :
 770                         g_strdup_printf("http://%s", proxy);
 771                 puri = soup_uri_new(new_proxy);
 772                 g_object_set(G_OBJECT(s), "proxy-uri", puri, NULL);
 773                 soup_uri_free(puri);
 774                 g_free(new_proxy);
 775         }
 776 }
 777
 778 void
 779 sigchld(int unused) {
 780         if(signal(SIGCHLD, sigchld) == SIG_ERR)
 781                 die("Can't install SIGCHLD handler");
 782         while(0 < waitpid(-1, NULL, WNOHANG));
 783 }
 784
 785 void
 786 source(Client *c, const Arg *arg) {
 787         Arg a = { .b = FALSE };
 788         gboolean s;
 789
 790         s = webkit_web_view_get_view_source_mode(c->view);
 791         webkit_web_view_set_view_source_mode(c->view, !s);
 792         reload(c, &a);
 793 }
 794
 795 void
 796 spawn(Client *c, const Arg *arg) {
 797         if(fork() == 0) {
 798                 if(dpy)
 799                         close(ConnectionNumber(dpy));
 800                 setsid();
 801                 execvp(((char **)arg->v)[0], (char **)arg->v);
 802                 fprintf(stderr, "surf: execvp %s", ((char **)arg->v)[0]);
 803                 perror(" failed");
 804                 exit(0);
 805         }
 806 }
 807
 808 void
 809 eval(Client *c, const Arg *arg) {
 810         WebKitWebFrame *frame = webkit_web_view_get_main_frame(c->view);
 811         evalscript(webkit_web_frame_get_global_context(frame),
 812                         ((char **)arg->v)[0], "");
 813 }
 814
 815 void
 816 stop(Client *c, const Arg *arg) {
 817         webkit_web_view_stop_loading(c->view);
 818 }
 819
 820 void
 821 titlechange(WebKitWebView *v, WebKitWebFrame *f, const char *t, Client *c) {
 822         c->title = copystr(&c->title, t);
 823         update(c);
 824 }
 825
 826 void
 827 update(Client *c) {
 828         char *t;
 829
 830         if(c->linkhover)
 831                 t = g_strdup(c->linkhover);
 832         else if(c->progress != 100)
 833                 t = g_strdup_printf("[%i%%] %s", c->progress, c->title);
 834         else
 835                 t = g_strdup(c->title);
 836         drawindicator(c);
 837         gtk_window_set_title(GTK_WINDOW(c->win), t);
 838         g_free(t);
 839 }
 840
 841 void
 842 updatewinid(Client *c) {
 843         snprintf(winid, LENGTH(winid), "%u",
 844                         (int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 845 }
 846
 847 void
 848 usage(void) {
 849         fputs("surf - simple browser\n", stderr);
 850         die("usage: surf [-e xid] [-i] [-p] [-s] [-v] [-x] [uri]\n");
 851 }
 852
 853 void
 854 windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c) {
 855         runscript(frame);
 856 }
 857
 858 void
 859 zoom(Client *c, const Arg *arg) {
 860         c->zoomed = TRUE;
 861         if(arg->i < 0)          /* zoom out */
 862                 webkit_web_view_zoom_out(c->view);
 863         else if(arg->i > 0)     /* zoom in */
 864                 webkit_web_view_zoom_in(c->view);
 865         else {                  /* reset */
 866                 c->zoomed = FALSE;
 867                 webkit_web_view_set_zoom_level(c->view, 1.0);
 868         }
 869 }
 870
 871 int
 872 main(int argc, char *argv[]) {
 873         int i;
 874         Arg arg;
 875
 876         progname = argv[0];
 877         /* command line args */
 878         for(i = 1, arg.v = NULL; i < argc && argv[i][0] == '-' &&
 879                         argv[i][1] != '\0' && argv[i][2] == '\0'; i++) {
 880                 if(!strcmp(argv[i], "--")) {
 881                         i++;
 882                         break;
 883                 }
 884                 switch(argv[i][1]) {
 885                 case 'e':
 886                         if(++i < argc)
 887                                 embed = strtol(argv[i], NULL, 0);
 888                         else
 889                                 usage();
 890                         break;
 891                 case 'i':
 892                         loadimage = 0;
 893                         break;
 894                 case 'p':
 895                         plugin = 0;
 896                         break;
 897                 case 's':
 898                         script = 0;
 899                         break;
 900                 case 'x':
 901                         showxid = TRUE;
 902                         break;
 903                 case 'v':
 904                         die("surf-"VERSION", ©2009-2012 surf engineers, see LICENSE for details\n");
 905                 default:
 906                         usage();
 907                 }
 908         }
 909         if(i < argc)
 910                 arg.v = argv[i];
 911         setup();
 912         newclient();
 913         if(arg.v)
 914                 loaduri(clients, &arg);
 915         gtk_main();
 916         cleanup();
 917         return EXIT_SUCCESS;
 918 }