surf.c

   1 /* See LICENSE file for copyright and license details.
   2  *
   3  * To understand surf, start reading main().
   4  */
   5 #include <signal.h>
   6 #include <X11/X.h>
   7 #include <X11/Xatom.h>
   8 #include <gtk/gtk.h>
   9 #include <gdk/gdkx.h>
  10 #include <gdk/gdk.h>
  11 #include <gdk/gdkkeysyms.h>
  12 #include <string.h>
  13 #include <sys/types.h>
  14 #include <sys/wait.h>
  15 #include <unistd.h>
  16 #include <stdlib.h>
  17 #include <stdio.h>
  18 #include <webkit/webkit.h>
  19 #include <glib/gstdio.h>
  20 #include <JavaScriptCore/JavaScript.h>
  21 #include <sys/file.h>
  22
  23 #define LENGTH(x)               (sizeof x / sizeof x[0])
  24 #define CLEANMASK(mask)         (mask & (GDK_SHIFT_MASK|GDK_CONTROL_MASK|GDK_MOD1_MASK|GDK_MOD2_MASK|GDK_MOD3_MASK|GDK_MOD4_MASK|GDK_MOD5_MASK))
  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 populatepopup(WebKitWebView *web, GtkMenu *menu, Client *c);
  97 static void popupactivate(GtkMenuItem *menu, Client *);
  98 static void print(Client *c, const Arg *arg);
  99 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event, gpointer d);
 100 static void progresschange(WebKitWebView *view, GParamSpec *pspec, Client *c);
 101 static void reload(Client *c, const Arg *arg);
 102 static void scroll_h(Client *c, const Arg *arg);
 103 static void scroll_v(Client *c, const Arg *arg);
 104 static void scroll(GtkAdjustment *a, const Arg *arg);
 105 static void setatom(Client *c, int a, const char *v);
 106 static void setcookie(SoupCookie *c);
 107 static void setup(void);
 108 static void sigchld(int unused);
 109 static void source(Client *c, const Arg *arg);
 110 static void spawn(Client *c, const Arg *arg);
 111 static void eval(Client *c, const Arg *arg);
 112 static void stop(Client *c, const Arg *arg);
 113 static void titlechange(WebKitWebView *v, WebKitWebFrame* frame, const char* title, Client *c);
 114 static void update(Client *c);
 115 static void updatewinid(Client *c);
 116 static void usage(void);
 117 static void windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c);
 118 static void zoom(Client *c, const Arg *arg);
 119
 120 /* configuration, allows nested code to access above variables */
 121 #include "config.h"
 122
 123 char *
 124 buildpath(const char *path) {
 125         char *apath, *p;
 126         FILE *f;
 127
 128         /* creating directory */
 129         if(path[0] == '/')
 130                 apath = g_strdup(path);
 131         else
 132                 apath = g_strconcat(g_get_home_dir(), "/", path, NULL);
 133         if((p = strrchr(apath, '/'))) {
 134                 *p = '\0';
 135                 g_mkdir_with_parents(apath, 0700);
 136                 g_chmod(apath, 0700); /* in case it existed */
 137                 *p = '/';
 138         }
 139         /* creating file (gives error when apath ends with "/") */
 140         if((f = fopen(apath, "a"))) {
 141                 g_chmod(apath, 0600); /* always */
 142                 fclose(f);
 143         }
 144         return apath;
 145 }
 146
 147 static gboolean
 148 buttonrelease(WebKitWebView *web, GdkEventButton *e, GList *gl) {
 149         WebKitHitTestResultContext context;
 150         WebKitHitTestResult *result = webkit_web_view_get_hit_test_result(web, e);
 151         Arg arg;
 152
 153         g_object_get(result, "context", &context, NULL);
 154         if(context & WEBKIT_HIT_TEST_RESULT_CONTEXT_LINK) {
 155                 if(e->button == 2) {
 156                         g_object_get(result, "link-uri", &arg.v, NULL);
 157                         newwindow(NULL, &arg, e->state & GDK_CONTROL_MASK);
 158                         return true;
 159                 }
 160         }
 161         return false;
 162 }
 163
 164 void
 165 cleanup(void) {
 166         while(clients)
 167                 destroyclient(clients);
 168         g_free(cookiefile);
 169         g_free(scriptfile);
 170         g_free(stylefile);
 171 }
 172
 173 void
 174 evalscript(JSContextRef js, char *script, char* scriptname) {
 175         JSStringRef jsscript, jsscriptname;
 176         JSValueRef exception = NULL;
 177
 178         jsscript = JSStringCreateWithUTF8CString(script);
 179         jsscriptname = JSStringCreateWithUTF8CString(scriptname);
 180         JSEvaluateScript(js, jsscript, JSContextGetGlobalObject(js), jsscriptname, 0, &exception);
 181         JSStringRelease(jsscript);
 182         JSStringRelease(jsscriptname);
 183 }
 184
 185 void
 186 runscript(WebKitWebFrame *frame) {
 187         char *script;
 188         GError *error;
 189
 190         if(g_file_get_contents(scriptfile, &script, NULL, &error)) {
 191                 evalscript(webkit_web_frame_get_global_context(frame), script, scriptfile);
 192         }
 193 }
 194
 195 void
 196 clipboard(Client *c, const Arg *arg) {
 197         gboolean paste = *(gboolean *)arg;
 198
 199         if(paste)
 200                 gtk_clipboard_request_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), pasteuri, c);
 201         else
 202                 gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), c->linkhover ? c->linkhover : geturi(c), -1);
 203 }
 204
 205 char *
 206 copystr(char **str, const char *src) {
 207         char *tmp;
 208         tmp = g_strdup(src);
 209
 210         if(str && *str) {
 211                 g_free(*str);
 212                 *str = tmp;
 213         }
 214         return tmp;
 215 }
 216
 217 WebKitWebView *
 218 createwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c) {
 219         Client *n = newclient();
 220         return n->view;
 221 }
 222
 223 gboolean
 224 decidedownload(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r, gchar *m,  WebKitWebPolicyDecision *p, Client *c) {
 225         if(!webkit_web_view_can_show_mime_type(v, m)) {
 226                 webkit_web_policy_decision_download(p);
 227                 return TRUE;
 228         }
 229         return FALSE;
 230 }
 231
 232 gboolean
 233 decidewindow(WebKitWebView *view, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c) {
 234         Arg arg;
 235
 236         if(webkit_web_navigation_action_get_reason(n) == WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED) {
 237                 webkit_web_policy_decision_ignore(p);
 238                 arg.v = (void *)webkit_network_request_get_uri(r);
 239                 newwindow(NULL, &arg, 0);
 240                 return TRUE;
 241         }
 242         return FALSE;
 243 }
 244
 245 void
 246 destroyclient(Client *c) {
 247         Client *p;
 248
 249         webkit_web_view_stop_loading(c->view);
 250         gtk_widget_destroy(c->indicator);
 251         gtk_widget_destroy(GTK_WIDGET(c->view));
 252         gtk_widget_destroy(c->scroll);
 253         gtk_widget_destroy(c->vbox);
 254         gtk_widget_destroy(c->win);
 255
 256         for(p = clients; p && p->next != c; p = p->next);
 257         if(p)
 258                 p->next = c->next;
 259         else
 260                 clients = c->next;
 261         free(c);
 262         if(clients == NULL)
 263                 gtk_main_quit();
 264 }
 265
 266 void
 267 destroywin(GtkWidget* w, Client *c) {
 268         destroyclient(c);
 269 }
 270
 271 void
 272 die(char *str) {
 273         fputs(str, stderr);
 274         exit(EXIT_FAILURE);
 275 }
 276
 277 void
 278 drawindicator(Client *c) {
 279         gint width;
 280         const char *uri;
 281         GtkWidget *w;
 282         GdkGC *gc;
 283         GdkColor fg;
 284
 285         uri = geturi(c);
 286         w = c->indicator;
 287         width = c->progress * w->allocation.width / 100;
 288         gc = gdk_gc_new(w->window);
 289         if(strstr(uri, "https://") == uri)
 290                 gdk_color_parse(c->sslfailed ?
 291                                 progress_untrust : progress_trust, &fg);
 292         else
 293                 gdk_color_parse(progress, &fg);
 294         gdk_gc_set_rgb_fg_color(gc, &fg);
 295         gdk_draw_rectangle(w->window,
 296                         w->style->bg_gc[GTK_WIDGET_STATE(w)],
 297                         TRUE, 0, 0, w->allocation.width, w->allocation.height);
 298         gdk_draw_rectangle(w->window, gc, TRUE, 0, 0, width,
 299                         w->allocation.height);
 300         g_object_unref(gc);
 301 }
 302
 303 gboolean
 304 exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c) {
 305         drawindicator(c);
 306         return TRUE;
 307 }
 308
 309 void
 310 find(Client *c, const Arg *arg) {
 311         const char *s;
 312
 313         s = getatom(c, AtomFind);
 314         gboolean forward = *(gboolean *)arg;
 315         webkit_web_view_search_text(c->view, s, FALSE, forward, TRUE);
 316 }
 317
 318 const char *
 319 getcookies(SoupURI *uri) {
 320         const char *c;
 321         SoupCookieJar *j = soup_cookie_jar_text_new(cookiefile, TRUE);
 322         c = soup_cookie_jar_get_cookies(j, uri, TRUE);
 323         g_object_unref(j);
 324         return c;
 325 }
 326
 327 const char *
 328 getatom(Client *c, int a) {
 329         static char buf[BUFSIZ];
 330         Atom adummy;
 331         int idummy;
 332         unsigned long ldummy;
 333         unsigned char *p = NULL;
 334
 335         XGetWindowProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window),
 336                         atoms[a], 0L, BUFSIZ, False, XA_STRING,
 337                         &adummy, &idummy, &ldummy, &ldummy, &p);
 338         if(p)
 339                 strncpy(buf, (char *)p, LENGTH(buf)-1);
 340         else
 341                 buf[0] = '\0';
 342         XFree(p);
 343         return buf;
 344 }
 345
 346 char *
 347 geturi(Client *c) {
 348         char *uri;
 349
 350         if(!(uri = (char *)webkit_web_view_get_uri(c->view)))
 351                 uri = "about:blank";
 352         return uri;
 353 }
 354
 355 void
 356 gotheaders(SoupMessage *msg, gpointer v) {
 357         GSList *l, *p;
 358
 359         for(p = l = soup_cookies_from_response(msg); p;
 360                 p = g_slist_next(p))  {
 361                 setcookie((SoupCookie *)p->data);
 362         }
 363         soup_cookies_free(l);
 364 }
 365
 366 gboolean
 367 initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
 368         Arg arg;
 369
 370         updatewinid(c);
 371         arg = (Arg)DOWNLOAD((char *)webkit_download_get_uri(o));
 372         spawn(c, &arg);
 373         return FALSE;
 374 }
 375
 376 gboolean
 377 keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
 378         guint i;
 379         gboolean processed = FALSE;
 380
 381         updatewinid(c);
 382         for(i = 0; i < LENGTH(keys); i++) {
 383                 if(gdk_keyval_to_lower(ev->keyval) == keys[i].keyval
 384                                 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
 385                                 && keys[i].func) {
 386                         keys[i].func(c, &(keys[i].arg));
 387                         processed = TRUE;
 388                 }
 389         }
 390         return processed;
 391 }
 392
 393 void
 394 linkhover(WebKitWebView *v, const char* t, const char* l, Client *c) {
 395         if(l) {
 396                 c->linkhover = copystr(&c->linkhover, l);
 397         }
 398         else if(c->linkhover) {
 399                 free(c->linkhover);
 400                 c->linkhover = NULL;
 401         }
 402         update(c);
 403 }
 404
 405 void
 406 loadstatuschange(WebKitWebView *view, GParamSpec *pspec, Client *c) {
 407         WebKitWebFrame *frame;
 408         WebKitWebDataSource *src;
 409         WebKitNetworkRequest *request;
 410         SoupMessage *msg;
 411         char *uri;
 412
 413         switch(webkit_web_view_get_load_status (c->view)) {
 414         case WEBKIT_LOAD_COMMITTED:
 415                 uri = geturi(c);
 416                 if(strstr(uri, "https://") == uri) {
 417                         frame = webkit_web_view_get_main_frame(c->view);
 418                         src = webkit_web_frame_get_data_source(frame);
 419                         request = webkit_web_data_source_get_request(src);
 420                         msg = webkit_network_request_get_message(request);
 421                         c->sslfailed = soup_message_get_flags(msg)
 422                                        ^ SOUP_MESSAGE_CERTIFICATE_TRUSTED;
 423                 }
 424                 setatom(c, AtomUri, uri);
 425                 break;
 426         case WEBKIT_LOAD_FINISHED:
 427                 c->progress = 100;
 428                 update(c);
 429                 break;
 430         default:
 431                 break;
 432         }
 433 }
 434
 435 void
 436 loaduri(Client *c, const Arg *arg) {
 437         char *u;
 438         const char *uri = (char *)arg->v;
 439         Arg a = { .b = FALSE };
 440
 441         if(strcmp(uri, "") == 0)
 442                 return;
 443         u = g_strrstr(uri, "://") ? g_strdup(uri)
 444                 : g_strdup_printf("http://%s", uri);
 445         /* prevents endless loop */
 446         if(c->uri && strcmp(u, c->uri) == 0) {
 447                 reload(c, &a);
 448         }
 449         else {
 450                 webkit_web_view_load_uri(c->view, u);
 451                 c->progress = 0;
 452                 c->title = copystr(&c->title, u);
 453                 g_free(u);
 454                 update(c);
 455         }
 456 }
 457
 458 void
 459 navigate(Client *c, const Arg *arg) {
 460         int steps = *(int *)arg;
 461         webkit_web_view_go_back_or_forward(c->view, steps);
 462 }
 463
 464 Client *
 465 newclient(void) {
 466         Client *c;
 467         WebKitWebSettings *settings;
 468         WebKitWebFrame *frame;
 469         GdkGeometry hints = { 1, 1 };
 470         char *uri, *ua;
 471
 472         if(!(c = calloc(1, sizeof(Client))))
 473                 die("Cannot malloc!\n");
 474         /* Window */
 475         if(embed) {
 476                 c->win = gtk_plug_new(embed);
 477         }
 478         else {
 479                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 480                 /* TA:  20091214:  Despite what the GNOME docs say, the ICCCM
 481                  * is always correct, so we should still call this function.
 482                  * But when doing so, we *must* differentiate between a
 483                  * WM_CLASS and a resource on the window.  By convention, the
 484                  * window class (WM_CLASS) is capped, while the resource is in
 485                  * lowercase.   Both these values come as a pair.
 486                  */
 487                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "Surf");
 488
 489                 /* TA:  20091214:  And set the role here as well -- so that
 490                  * sessions can pick this up.
 491                  */
 492                 gtk_window_set_role(GTK_WINDOW(c->win), "Surf");
 493         }
 494         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 495         g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(destroywin), c);
 496         g_signal_connect(G_OBJECT(c->win), "key-press-event", G_CALLBACK(keypress), c);
 497
 498         /* VBox */
 499         c->vbox = gtk_vbox_new(FALSE, 0);
 500
 501         /* Scrolled Window */
 502         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 503         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 504                         GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 505
 506         /* Webview */
 507         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 508         g_signal_connect(G_OBJECT(c->view), "title-changed", G_CALLBACK(titlechange), c);
 509         g_signal_connect(G_OBJECT(c->view), "hovering-over-link", G_CALLBACK(linkhover), c);
 510         g_signal_connect(G_OBJECT(c->view), "create-web-view", G_CALLBACK(createwindow), c);
 511         g_signal_connect(G_OBJECT(c->view), "new-window-policy-decision-requested", G_CALLBACK(decidewindow), c);
 512         g_signal_connect(G_OBJECT(c->view), "mime-type-policy-decision-requested", G_CALLBACK(decidedownload), c);
 513         g_signal_connect(G_OBJECT(c->view), "window-object-cleared", G_CALLBACK(windowobjectcleared), c);
 514         g_signal_connect(G_OBJECT(c->view), "notify::load-status", G_CALLBACK(loadstatuschange), c);
 515         g_signal_connect(G_OBJECT(c->view), "notify::progress", G_CALLBACK(progresschange), c);
 516         g_signal_connect(G_OBJECT(c->view), "download-requested", G_CALLBACK(initdownload), c);
 517         g_signal_connect(G_OBJECT(c->view), "button-release-event", G_CALLBACK(buttonrelease), c);
 518         g_signal_connect(G_OBJECT(c->view), "populate-popup", G_CALLBACK(populatepopup), c);
 519
 520         /* Indicator */
 521         c->indicator = gtk_drawing_area_new();
 522         gtk_widget_set_size_request(c->indicator, 0, 2);
 523         g_signal_connect (G_OBJECT (c->indicator), "expose_event",
 524                         G_CALLBACK (exposeindicator), c);
 525
 526         /* Arranging */
 527         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 528         gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 529         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 530         gtk_container_add(GTK_CONTAINER(c->vbox), c->indicator);
 531
 532         /* Setup */
 533         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->indicator, FALSE, FALSE, 0, GTK_PACK_START);
 534         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE, TRUE, 0, GTK_PACK_START);
 535         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 536         gtk_widget_show(c->vbox);
 537         gtk_widget_show(c->indicator);
 538         gtk_widget_show(c->scroll);
 539         gtk_widget_show(GTK_WIDGET(c->view));
 540         gtk_widget_show(c->win);
 541         gtk_window_set_geometry_hints(GTK_WINDOW(c->win), NULL, &hints, GDK_HINT_MIN_SIZE);
 542         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 543         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 544         webkit_web_view_set_full_content_zoom(c->view, TRUE);
 545         frame = webkit_web_view_get_main_frame(c->view);
 546         runscript(frame);
 547         settings = webkit_web_view_get_settings(c->view);
 548         if(!(ua = getenv("SURF_USERAGENT")))
 549                 ua = useragent;
 550         g_object_set(G_OBJECT(settings), "user-agent", ua, NULL);
 551         uri = g_strconcat("file://", stylefile, NULL);
 552         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
 553         g_object_set(G_OBJECT(settings), "auto-load-images", loadimage, NULL);
 554         g_object_set(G_OBJECT(settings), "enable-plugins", plugin, NULL);
 555         g_object_set(G_OBJECT(settings), "enable-scripts", script, NULL);
 556         g_object_set(G_OBJECT(settings), "enable-spatial-navigation", SPATIAL_BROWSING, NULL);
 557
 558         g_free(uri);
 559
 560         setatom(c, AtomFind, "");
 561         setatom(c, AtomUri, "about:blank");
 562         if(HIDE_BACKGROUND)
 563                 webkit_web_view_set_transparent(c->view, TRUE);
 564
 565         c->title = NULL;
 566         c->next = clients;
 567         clients = c;
 568         if(showxid) {
 569                 gdk_display_sync(gtk_widget_get_display(c->win));
 570                 printf("%u\n", (guint)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 571                 fflush(NULL);
 572                 if (fclose(stdout) != 0) {
 573                         die("Error closing stdout");
 574                 }
 575         }
 576         return c;
 577 }
 578
 579 void
 580 newrequest(SoupSession *s, SoupMessage *msg, gpointer v) {
 581         SoupMessageHeaders *h = msg->request_headers;
 582         SoupURI *uri;
 583         const char *c;
 584
 585         soup_message_headers_remove(h, "Cookie");
 586         uri = soup_message_get_uri(msg);
 587         if((c = getcookies(uri)))
 588                 soup_message_headers_append(h, "Cookie", c);
 589         g_signal_connect_after(G_OBJECT(msg), "got-headers", G_CALLBACK(gotheaders), NULL);
 590 }
 591
 592 void
 593 newwindow(Client *c, const Arg *arg, gboolean noembed) {
 594         guint i = 0;
 595         const char *cmd[10], *uri;
 596         const Arg a = { .v = (void *)cmd };
 597         char tmp[64];
 598
 599         cmd[i++] = progname;
 600         if(embed && !noembed) {
 601                 cmd[i++] = "-e";
 602                 snprintf(tmp, LENGTH(tmp), "%u\n", (int)embed);
 603                 cmd[i++] = tmp;
 604         }
 605         if(!script)
 606                 cmd[i++] = "-s";
 607         if(!plugin)
 608                 cmd[i++] = "-p";
 609         if(!loadimage)
 610                 cmd[i++] = "-i";
 611         if(showxid)
 612                 cmd[i++] = "-x";
 613         cmd[i++] = "--";
 614         uri = arg->v ? (char *)arg->v : c->linkhover;
 615         if(uri)
 616                 cmd[i++] = uri;
 617         cmd[i++] = NULL;
 618         spawn(NULL, &a);
 619 }
 620
 621 static void
 622 populatepopup(WebKitWebView *web, GtkMenu *menu, Client *c) {
 623         GList *items = gtk_container_get_children(GTK_CONTAINER(menu));
 624
 625         for(GList *l = items; l; l = l->next) {
 626                 g_signal_connect(l->data, "activate", G_CALLBACK(popupactivate), c);
 627         }
 628
 629         g_list_free(items);
 630 }
 631
 632 static void
 633 popupactivate(GtkMenuItem *menu, Client *c) {
 634         /*
 635          * context-menu-action-2000     open link
 636          * context-menu-action-1        open link in window
 637          * context-menu-action-2        download linked file
 638          * context-menu-action-3        copy link location
 639          * context-menu-action-13       reload
 640          * context-menu-action-10       back
 641          * context-menu-action-11       forward
 642          * context-menu-action-12       stop
 643          */
 644
 645         GtkAction *a = NULL;
 646         const char *name;
 647         GtkClipboard *prisel;
 648
 649         a = gtk_activatable_get_related_action(GTK_ACTIVATABLE(menu));
 650         if(a == NULL)
 651                 return;
 652
 653         name = gtk_action_get_name(a);
 654         if(!g_strcmp0(name, "context-menu-action-3")) {
 655                 prisel = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
 656                 gtk_clipboard_set_text(prisel, c->linkhover, -1);
 657         }
 658 }
 659
 660 void
 661 pasteuri(GtkClipboard *clipboard, const char *text, gpointer d) {
 662         Arg arg = {.v = text };
 663         if(text != NULL)
 664                 loaduri((Client *) d, &arg);
 665 }
 666
 667 void
 668 print(Client *c, const Arg *arg) {
 669         webkit_web_frame_print(webkit_web_view_get_main_frame(c->view));
 670 }
 671
 672 GdkFilterReturn
 673 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 674         Client *c = (Client *)d;
 675         XPropertyEvent *ev;
 676         Arg arg;
 677
 678         if(((XEvent *)e)->type == PropertyNotify) {
 679                 ev = &((XEvent *)e)->xproperty;
 680                 if(ev->state == PropertyNewValue) {
 681                         if(ev->atom == atoms[AtomFind]) {
 682                                 arg.b = TRUE;
 683                                 find(c, &arg);
 684                                 return GDK_FILTER_REMOVE;
 685                         }
 686                         else if(ev->atom == atoms[AtomGo]) {
 687                                 arg.v = getatom(c, AtomGo);
 688                                 loaduri(c, &arg);
 689                                 return GDK_FILTER_REMOVE;
 690                         }
 691                 }
 692         }
 693         return GDK_FILTER_CONTINUE;
 694 }
 695
 696 void
 697 progresschange(WebKitWebView *view, GParamSpec *pspec, Client *c) {
 698         c->progress = webkit_web_view_get_progress(c->view) * 100;
 699         update(c);
 700 }
 701
 702 void
 703 reload(Client *c, const Arg *arg) {
 704         gboolean nocache = *(gboolean *)arg;
 705         if(nocache)
 706                  webkit_web_view_reload_bypass_cache(c->view);
 707         else
 708                  webkit_web_view_reload(c->view);
 709 }
 710
 711 void
 712 scroll_h(Client *c, const Arg *arg) {
 713         scroll(gtk_scrolled_window_get_hadjustment(
 714                                 GTK_SCROLLED_WINDOW(c->scroll)), arg);
 715 }
 716
 717 void
 718 scroll_v(Client *c, const Arg *arg) {
 719         scroll(gtk_scrolled_window_get_vadjustment(
 720                                 GTK_SCROLLED_WINDOW(c->scroll)), arg);
 721 }
 722
 723 void
 724 scroll(GtkAdjustment *a, const Arg *arg) {
 725         gdouble v;
 726
 727         v = gtk_adjustment_get_value(a);
 728         switch (arg->i){
 729         case +10000:
 730         case -10000:
 731                 v += gtk_adjustment_get_page_increment(a) *
 732                         (arg->i / 10000);
 733                 break;
 734         case +20000:
 735         case -20000:
 736         default:
 737                 v += gtk_adjustment_get_step_increment(a) * arg->i;
 738         }
 739
 740         v = MAX(v, 0.0);
 741         v = MIN(v, gtk_adjustment_get_upper(a) -
 742                         gtk_adjustment_get_page_size(a));
 743         gtk_adjustment_set_value(a, v);
 744 }
 745
 746 void
 747 setcookie(SoupCookie *c) {
 748         int lock;
 749
 750         lock = open(cookiefile, 0);
 751         flock(lock, LOCK_EX);
 752         SoupDate *e;
 753         SoupCookieJar *j = soup_cookie_jar_text_new(cookiefile, FALSE);
 754         c = soup_cookie_copy(c);
 755         if(c->expires == NULL && sessiontime) {
 756                 e = soup_date_new_from_time_t(time(NULL) + sessiontime);
 757                 soup_cookie_set_expires(c, e);
 758         }
 759         soup_cookie_jar_add_cookie(j, c);
 760         g_object_unref(j);
 761         flock(lock, LOCK_UN);
 762         close(lock);
 763 }
 764
 765 void
 766 setatom(Client *c, int a, const char *v) {
 767         XSync(dpy, False);
 768         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window), atoms[a],
 769                         XA_STRING, 8, PropModeReplace, (unsigned char *)v,
 770                         strlen(v) + 1);
 771 }
 772
 773 void
 774 setup(void) {
 775         char *proxy;
 776         char *new_proxy;
 777         SoupURI *puri;
 778         SoupSession *s;
 779
 780         /* clean up any zombies immediately */
 781         sigchld(0);
 782         gtk_init(NULL, NULL);
 783         if (!g_thread_supported())
 784                 g_thread_init(NULL);
 785
 786         dpy = GDK_DISPLAY();
 787         s = webkit_get_default_session();
 788
 789         /* atoms */
 790         atoms[AtomFind] = XInternAtom(dpy, "_SURF_FIND", False);
 791         atoms[AtomGo] = XInternAtom(dpy, "_SURF_GO", False);
 792         atoms[AtomUri] = XInternAtom(dpy, "_SURF_URI", False);
 793
 794         /* dirs and files */
 795         cookiefile = buildpath(cookiefile);
 796         scriptfile = buildpath(scriptfile);
 797         stylefile = buildpath(stylefile);
 798
 799         /* request handler */
 800         s = webkit_get_default_session();
 801         soup_session_remove_feature_by_type(s, soup_cookie_get_type());
 802         soup_session_remove_feature_by_type(s, soup_cookie_jar_get_type());
 803         g_signal_connect_after(G_OBJECT(s), "request-started", G_CALLBACK(newrequest), NULL);
 804
 805         /* ssl */
 806         g_object_set(G_OBJECT(s), "ssl-ca-file", cafile, NULL);
 807         g_object_set(G_OBJECT(s), "ssl-strict", strictssl, NULL);
 808
 809         /* proxy */
 810         if((proxy = getenv("http_proxy")) && strcmp(proxy, "")) {
 811                 new_proxy = g_strrstr(proxy, "http://") ? g_strdup(proxy) :
 812                         g_strdup_printf("http://%s", proxy);
 813                 puri = soup_uri_new(new_proxy);
 814                 g_object_set(G_OBJECT(s), "proxy-uri", puri, NULL);
 815                 soup_uri_free(puri);
 816                 g_free(new_proxy);
 817         }
 818 }
 819
 820 void
 821 sigchld(int unused) {
 822         if(signal(SIGCHLD, sigchld) == SIG_ERR)
 823                 die("Can't install SIGCHLD handler");
 824         while(0 < waitpid(-1, NULL, WNOHANG));
 825 }
 826
 827 void
 828 source(Client *c, const Arg *arg) {
 829         Arg a = { .b = FALSE };
 830         gboolean s;
 831
 832         s = webkit_web_view_get_view_source_mode(c->view);
 833         webkit_web_view_set_view_source_mode(c->view, !s);
 834         reload(c, &a);
 835 }
 836
 837 void
 838 spawn(Client *c, const Arg *arg) {
 839         if(fork() == 0) {
 840                 if(dpy)
 841                         close(ConnectionNumber(dpy));
 842                 setsid();
 843                 execvp(((char **)arg->v)[0], (char **)arg->v);
 844                 fprintf(stderr, "surf: execvp %s", ((char **)arg->v)[0]);
 845                 perror(" failed");
 846                 exit(0);
 847         }
 848 }
 849
 850 void
 851 eval(Client *c, const Arg *arg) {
 852         WebKitWebFrame *frame = webkit_web_view_get_main_frame(c->view);
 853         evalscript(webkit_web_frame_get_global_context(frame),
 854                         ((char **)arg->v)[0], "");
 855 }
 856
 857 void
 858 stop(Client *c, const Arg *arg) {
 859         webkit_web_view_stop_loading(c->view);
 860 }
 861
 862 void
 863 titlechange(WebKitWebView *v, WebKitWebFrame *f, const char *t, Client *c) {
 864         c->title = copystr(&c->title, t);
 865         update(c);
 866 }
 867
 868 void
 869 update(Client *c) {
 870         char *t;
 871
 872         if(c->linkhover)
 873                 t = g_strdup(c->linkhover);
 874         else if(c->progress != 100)
 875                 t = g_strdup_printf("[%i%%] %s", c->progress, c->title);
 876         else
 877                 t = g_strdup(c->title);
 878         drawindicator(c);
 879         gtk_window_set_title(GTK_WINDOW(c->win), t);
 880         g_free(t);
 881 }
 882
 883 void
 884 updatewinid(Client *c) {
 885         snprintf(winid, LENGTH(winid), "%u",
 886                         (int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 887 }
 888
 889 void
 890 usage(void) {
 891         fputs("surf - simple browser\n", stderr);
 892         die("usage: surf [-e xid] [-i] [-p] [-s] [-v] [-x] [uri]\n");
 893 }
 894
 895 void
 896 windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c) {
 897         runscript(frame);
 898 }
 899
 900 void
 901 zoom(Client *c, const Arg *arg) {
 902         c->zoomed = TRUE;
 903         if(arg->i < 0)          /* zoom out */
 904                 webkit_web_view_zoom_out(c->view);
 905         else if(arg->i > 0)     /* zoom in */
 906                 webkit_web_view_zoom_in(c->view);
 907         else {                  /* reset */
 908                 c->zoomed = FALSE;
 909                 webkit_web_view_set_zoom_level(c->view, 1.0);
 910         }
 911 }
 912
 913 int
 914 main(int argc, char *argv[]) {
 915         int i;
 916         Arg arg;
 917
 918         progname = argv[0];
 919         /* command line args */
 920         for(i = 1, arg.v = NULL; i < argc && argv[i][0] == '-' &&
 921                         argv[i][1] != '\0' && argv[i][2] == '\0'; i++) {
 922                 if(!strcmp(argv[i], "--")) {
 923                         i++;
 924                         break;
 925                 }
 926                 switch(argv[i][1]) {
 927                 case 'e':
 928                         if(++i < argc)
 929                                 embed = strtol(argv[i], NULL, 0);
 930                         else
 931                                 usage();
 932                         break;
 933                 case 'i':
 934                         loadimage = 0;
 935                         break;
 936                 case 'p':
 937                         plugin = 0;
 938                         break;
 939                 case 's':
 940                         script = 0;
 941                         break;
 942                 case 'x':
 943                         showxid = TRUE;
 944                         break;
 945                 case 'v':
 946                         die("surf-"VERSION", ©2009-2012 surf engineers, see LICENSE for details\n");
 947                 default:
 948                         usage();
 949                 }
 950         }
 951         if(i < argc)
 952                 arg.v = argv[i];
 953         setup();
 954         newclient();
 955         if(arg.v)
 956                 loaduri(clients, &arg);
 957         gtk_main();
 958         cleanup();
 959         return EXIT_SUCCESS;
 960 }