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
  25 enum { AtomFind, AtomGo, AtomUri, AtomLast };
  26
  27 typedef union Arg Arg;
  28 union Arg {
  29         gboolean b;
  30         gint i;
  31         const void *v;
  32 };
  33
  34 typedef struct Client {
  35         GtkWidget *win, *scroll, *vbox, *indicator;
  36         WebKitWebView *view;
  37         char *title, *linkhover;
  38         const char *uri, *needle;
  39         gint progress;
  40         gboolean sslfailed;
  41         struct Client *next;
  42         gboolean zoomed;
  43 } Client;
  44
  45 typedef struct {
  46         char *label;
  47         void (*func)(Client *c, const Arg *arg);
  48         const Arg arg;
  49 } Item;
  50
  51 typedef struct {
  52         guint mod;
  53         guint keyval;
  54         void (*func)(Client *c, const Arg *arg);
  55         const Arg arg;
  56 } Key;
  57
  58 static Display *dpy;
  59 static Atom atoms[AtomLast];
  60 static Client *clients = NULL;
  61 static GdkNativeWindow embed = 0;
  62 static gboolean showxid = FALSE;
  63 static char winid[64];
  64 static char *progname;
  65 static gboolean loadimage = 1, plugin = 1, script = 1;
  66
  67 static char *buildpath(const char *path);
  68 static gboolean buttonrelease(WebKitWebView *web, GdkEventButton *e, GList *gl);
  69 static void cleanup(void);
  70 static void clipboard(Client *c, const Arg *arg);
  71 static char *copystr(char **str, const char *src);
  72 static WebKitWebView *createwindow(WebKitWebView *v, WebKitWebFrame *f, Client *c);
  73 static gboolean decidedownload(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r, gchar *m,  WebKitWebPolicyDecision *p, Client *c);
  74 static gboolean decidewindow(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c);
  75 static void destroyclient(Client *c);
  76 static void destroywin(GtkWidget* w, Client *c);
  77 static void die(char *str);
  78 static void drawindicator(Client *c);
  79 static gboolean exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c);
  80 static void find(Client *c, const Arg *arg);
  81 static const char *getatom(Client *c, int a);
  82 static const char *getcookies(SoupURI *uri);
  83 static char *geturi(Client *c);
  84 void gotheaders(SoupMessage *msg, gpointer user_data);
  85 static gboolean initdownload(WebKitWebView *v, WebKitDownload *o, Client *c);
  86 static gboolean keypress(GtkWidget *w, GdkEventKey *ev, Client *c);
  87 static void linkhover(WebKitWebView *v, const char* t, const char* l, Client *c);
  88 static void loadstatuschange(WebKitWebView *view, GParamSpec *pspec, Client *c);
  89 static void loaduri(Client *c, const Arg *arg);
  90 static void navigate(Client *c, const Arg *arg);
  91 static Client *newclient(void);
  92 static void newwindow(Client *c, const Arg *arg, gboolean noembed);
  93 static void newrequest(SoupSession *s, SoupMessage *msg, gpointer v);
  94 static void pasteuri(GtkClipboard *clipboard, const char *text, gpointer d);
  95 static void populatepopup(WebKitWebView *web, GtkMenu *menu, Client *c);
  96 static void popupactivate(GtkMenuItem *menu, Client *);
  97 static void print(Client *c, const Arg *arg);
  98 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event, gpointer d);
  99 static void progresschange(WebKitWebView *view, GParamSpec *pspec, Client *c);
 100 static void reload(Client *c, const Arg *arg);
 101 static void scroll_h(Client *c, const Arg *arg);
 102 static void scroll_v(Client *c, const Arg *arg);
 103 static void scroll(GtkAdjustment *a, const Arg *arg);
 104 static void setatom(Client *c, int a, const char *v);
 105 static void setcookie(SoupCookie *c);
 106 static void setup(void);
 107 static void sigchld(int unused);
 108 static void source(Client *c, const Arg *arg);
 109 static void spawn(Client *c, const Arg *arg);
 110 static void eval(Client *c, const Arg *arg);
 111 static void stop(Client *c, const Arg *arg);
 112 static void titlechange(WebKitWebView *v, WebKitWebFrame* frame, const char* title, Client *c);
 113 static void update(Client *c);
 114 static void updatewinid(Client *c);
 115 static void usage(void);
 116 static void windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c);
 117 static void zoom(Client *c, const Arg *arg);
 118
 119 /* configuration, allows nested code to access above variables */
 120 #include "config.h"
 121
 122 char *
 123 buildpath(const char *path) {
 124         char *apath, *p;
 125         FILE *f;
 126
 127         /* creating directory */
 128         if(path[0] == '/')
 129                 apath = g_strdup(path);
 130         else
 131                 apath = g_strconcat(g_get_home_dir(), "/", path, NULL);
 132         if((p = strrchr(apath, '/'))) {
 133                 *p = '\0';
 134                 g_mkdir_with_parents(apath, 0700);
 135                 g_chmod(apath, 0700); /* in case it existed */
 136                 *p = '/';
 137         }
 138         /* creating file (gives error when apath ends with "/") */
 139         if((f = fopen(apath, "a"))) {
 140                 g_chmod(apath, 0600); /* always */
 141                 fclose(f);
 142         }
 143         return apath;
 144 }
 145
 146 static gboolean
 147 buttonrelease(WebKitWebView *web, GdkEventButton *e, GList *gl) {
 148         WebKitHitTestResultContext context;
 149         WebKitHitTestResult *result = webkit_web_view_get_hit_test_result(web, e);
 150         Arg arg;
 151
 152         g_object_get(result, "context", &context, NULL);
 153         if(context & WEBKIT_HIT_TEST_RESULT_CONTEXT_LINK) {
 154                 if(e->button == 2) {
 155                         g_object_get(result, "link-uri", &arg.v, NULL);
 156                         newwindow(NULL, &arg, e->state & GDK_CONTROL_MASK);
 157                         return true;
 158                 }
 159         }
 160         return false;
 161 }
 162
 163 void
 164 cleanup(void) {
 165         while(clients)
 166                 destroyclient(clients);
 167         g_free(cookiefile);
 168         g_free(scriptfile);
 169         g_free(stylefile);
 170 }
 171
 172 void
 173 evalscript(JSContextRef js, char *script, char* scriptname) {
 174         JSStringRef jsscript, jsscriptname;
 175         JSValueRef exception = NULL;
 176
 177         jsscript = JSStringCreateWithUTF8CString(script);
 178         jsscriptname = JSStringCreateWithUTF8CString(scriptname);
 179         JSEvaluateScript(js, jsscript, JSContextGetGlobalObject(js), jsscriptname, 0, &exception);
 180         JSStringRelease(jsscript);
 181         JSStringRelease(jsscriptname);
 182 }
 183
 184 void
 185 runscript(WebKitWebFrame *frame) {
 186         char *script;
 187         GError *error;
 188
 189         if(g_file_get_contents(scriptfile, &script, NULL, &error)) {
 190                 evalscript(webkit_web_frame_get_global_context(frame), script, scriptfile);
 191         }
 192 }
 193
 194 void
 195 clipboard(Client *c, const Arg *arg) {
 196         gboolean paste = *(gboolean *)arg;
 197
 198         if(paste)
 199                 gtk_clipboard_request_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), pasteuri, c);
 200         else
 201                 gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), c->linkhover ? c->linkhover : geturi(c), -1);
 202 }
 203
 204 char *
 205 copystr(char **str, const char *src) {
 206         char *tmp;
 207         tmp = g_strdup(src);
 208
 209         if(str && *str) {
 210                 g_free(*str);
 211                 *str = tmp;
 212         }
 213         return tmp;
 214 }
 215
 216 WebKitWebView *
 217 createwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c) {
 218         Client *n = newclient();
 219         return n->view;
 220 }
 221
 222 gboolean
 223 decidedownload(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r, gchar *m,  WebKitWebPolicyDecision *p, Client *c) {
 224         if(!webkit_web_view_can_show_mime_type(v, m)) {
 225                 webkit_web_policy_decision_download(p);
 226                 return TRUE;
 227         }
 228         return FALSE;
 229 }
 230
 231 gboolean
 232 decidewindow(WebKitWebView *view, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c) {
 233         Arg arg;
 234
 235         if(webkit_web_navigation_action_get_reason(n) == WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED) {
 236                 webkit_web_policy_decision_ignore(p);
 237                 arg.v = (void *)webkit_network_request_get_uri(r);
 238                 newwindow(NULL, &arg, 0);
 239                 return TRUE;
 240         }
 241         return FALSE;
 242 }
 243
 244 void
 245 destroyclient(Client *c) {
 246         Client *p;
 247
 248         webkit_web_view_stop_loading(c->view);
 249         gtk_widget_destroy(c->indicator);
 250         gtk_widget_destroy(GTK_WIDGET(c->view));
 251         gtk_widget_destroy(c->scroll);
 252         gtk_widget_destroy(c->vbox);
 253         gtk_widget_destroy(c->win);
 254
 255         for(p = clients; p && p->next != c; p = p->next);
 256         if(p)
 257                 p->next = c->next;
 258         else
 259                 clients = c->next;
 260         free(c);
 261         if(clients == NULL)
 262                 gtk_main_quit();
 263 }
 264
 265 void
 266 destroywin(GtkWidget* w, Client *c) {
 267         destroyclient(c);
 268 }
 269
 270 void
 271 die(char *str) {
 272         fputs(str, stderr);
 273         exit(EXIT_FAILURE);
 274 }
 275
 276 void
 277 drawindicator(Client *c) {
 278         gint width;
 279         const char *uri;
 280         GtkWidget *w;
 281         GdkGC *gc;
 282         GdkColor fg;
 283
 284         uri = geturi(c);
 285         w = c->indicator;
 286         width = c->progress * w->allocation.width / 100;
 287         gc = gdk_gc_new(w->window);
 288         if(strstr(uri, "https://") == uri)
 289                 gdk_color_parse(c->sslfailed ?
 290                                 progress_untrust : progress_trust, &fg);
 291         else
 292                 gdk_color_parse(progress, &fg);
 293         gdk_gc_set_rgb_fg_color(gc, &fg);
 294         gdk_draw_rectangle(w->window,
 295                         w->style->bg_gc[GTK_WIDGET_STATE(w)],
 296                         TRUE, 0, 0, w->allocation.width, w->allocation.height);
 297         gdk_draw_rectangle(w->window, gc, TRUE, 0, 0, width,
 298                         w->allocation.height);
 299         g_object_unref(gc);
 300 }
 301
 302 gboolean
 303 exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c) {
 304         drawindicator(c);
 305         return TRUE;
 306 }
 307
 308 void
 309 find(Client *c, const Arg *arg) {
 310         const char *s;
 311
 312         s = getatom(c, AtomFind);
 313         gboolean forward = *(gboolean *)arg;
 314         webkit_web_view_search_text(c->view, s, FALSE, forward, TRUE);
 315 }
 316
 317 const char *
 318 getcookies(SoupURI *uri) {
 319         const char *c;
 320         SoupCookieJar *j = soup_cookie_jar_text_new(cookiefile, TRUE);
 321         c = soup_cookie_jar_get_cookies(j, uri, TRUE);
 322         g_object_unref(j);
 323         return c;
 324 }
 325
 326 const char *
 327 getatom(Client *c, int a) {
 328         static char buf[BUFSIZ];
 329         Atom adummy;
 330         int idummy;
 331         unsigned long ldummy;
 332         unsigned char *p = NULL;
 333
 334         XGetWindowProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window),
 335                         atoms[a], 0L, BUFSIZ, False, XA_STRING,
 336                         &adummy, &idummy, &ldummy, &ldummy, &p);
 337         if(p)
 338                 strncpy(buf, (char *)p, LENGTH(buf)-1);
 339         else
 340                 buf[0] = '\0';
 341         XFree(p);
 342         return buf;
 343 }
 344
 345 char *
 346 geturi(Client *c) {
 347         char *uri;
 348
 349         if(!(uri = (char *)webkit_web_view_get_uri(c->view)))
 350                 uri = "about:blank";
 351         return uri;
 352 }
 353
 354 void
 355 gotheaders(SoupMessage *msg, gpointer v) {
 356         GSList *l, *p;
 357
 358         for(p = l = soup_cookies_from_response(msg); p;
 359                 p = g_slist_next(p))  {
 360                 setcookie((SoupCookie *)p->data);
 361         }
 362         soup_cookies_free(l);
 363 }
 364
 365 gboolean
 366 initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
 367         Arg arg;
 368
 369         updatewinid(c);
 370         arg = (Arg)DOWNLOAD((char *)webkit_download_get_uri(o));
 371         spawn(c, &arg);
 372         return FALSE;
 373 }
 374
 375 gboolean
 376 keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
 377         guint i;
 378         gboolean processed = FALSE;
 379
 380         updatewinid(c);
 381         for(i = 0; i < LENGTH(keys); i++) {
 382                 if(gdk_keyval_to_lower(ev->keyval) == keys[i].keyval
 383                                 && (ev->state & keys[i].mod) == keys[i].mod
 384                                 && keys[i].func) {
 385                         keys[i].func(c, &(keys[i].arg));
 386                         processed = TRUE;
 387                 }
 388         }
 389         return processed;
 390 }
 391
 392 void
 393 linkhover(WebKitWebView *v, const char* t, const char* l, Client *c) {
 394         if(l) {
 395                 c->linkhover = copystr(&c->linkhover, l);
 396         }
 397         else if(c->linkhover) {
 398                 free(c->linkhover);
 399                 c->linkhover = NULL;
 400         }
 401         update(c);
 402 }
 403
 404 void
 405 loadstatuschange(WebKitWebView *view, GParamSpec *pspec, Client *c) {
 406         WebKitWebFrame *frame;
 407         WebKitWebDataSource *src;
 408         WebKitNetworkRequest *request;
 409         SoupMessage *msg;
 410         char *uri;
 411
 412         switch(webkit_web_view_get_load_status (c->view)) {
 413         case WEBKIT_LOAD_COMMITTED:
 414                 uri = geturi(c);
 415                 if(strstr(uri, "https://") == uri) {
 416                         frame = webkit_web_view_get_main_frame(c->view);
 417                         src = webkit_web_frame_get_data_source(frame);
 418                         request = webkit_web_data_source_get_request(src);
 419                         msg = webkit_network_request_get_message(request);
 420                         c->sslfailed = soup_message_get_flags(msg)
 421                                        ^ SOUP_MESSAGE_CERTIFICATE_TRUSTED;
 422                 }
 423                 setatom(c, AtomUri, uri);
 424                 break;
 425         case WEBKIT_LOAD_FINISHED:
 426                 c->progress = 100;
 427                 update(c);
 428                 break;
 429         default:
 430                 break;
 431         }
 432 }
 433
 434 void
 435 loaduri(Client *c, const Arg *arg) {
 436         char *u;
 437         const char *uri = (char *)arg->v;
 438         Arg a = { .b = FALSE };
 439
 440         if(strcmp(uri, "") == 0)
 441                 return;
 442         u = g_strrstr(uri, "://") ? g_strdup(uri)
 443                 : g_strdup_printf("http://%s", uri);
 444         /* prevents endless loop */
 445         if(c->uri && strcmp(u, c->uri) == 0) {
 446                 reload(c, &a);
 447         }
 448         else {
 449                 webkit_web_view_load_uri(c->view, u);
 450                 c->progress = 0;
 451                 c->title = copystr(&c->title, u);
 452                 g_free(u);
 453                 update(c);
 454         }
 455 }
 456
 457 void
 458 navigate(Client *c, const Arg *arg) {
 459         int steps = *(int *)arg;
 460         webkit_web_view_go_back_or_forward(c->view, steps);
 461 }
 462
 463 Client *
 464 newclient(void) {
 465         Client *c;
 466         WebKitWebSettings *settings;
 467         WebKitWebFrame *frame;
 468         GdkGeometry hints = { 1, 1 };
 469         char *uri, *ua;
 470
 471         if(!(c = calloc(1, sizeof(Client))))
 472                 die("Cannot malloc!\n");
 473         /* Window */
 474         if(embed) {
 475                 c->win = gtk_plug_new(embed);
 476         }
 477         else {
 478                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 479                 /* TA:  20091214:  Despite what the GNOME docs say, the ICCCM
 480                  * is always correct, so we should still call this function.
 481                  * But when doing so, we *must* differentiate between a
 482                  * WM_CLASS and a resource on the window.  By convention, the
 483                  * window class (WM_CLASS) is capped, while the resource is in
 484                  * lowercase.   Both these values come as a pair.
 485                  */
 486                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "Surf");
 487
 488                 /* TA:  20091214:  And set the role here as well -- so that
 489                  * sessions can pick this up.
 490                  */
 491                 gtk_window_set_role(GTK_WINDOW(c->win), "Surf");
 492         }
 493         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 494         g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(destroywin), c);
 495         g_signal_connect(G_OBJECT(c->win), "key-press-event", G_CALLBACK(keypress), c);
 496
 497         /* VBox */
 498         c->vbox = gtk_vbox_new(FALSE, 0);
 499
 500         /* Scrolled Window */
 501         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 502         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 503                         GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 504
 505         /* Webview */
 506         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 507         g_signal_connect(G_OBJECT(c->view), "title-changed", G_CALLBACK(titlechange), c);
 508         g_signal_connect(G_OBJECT(c->view), "hovering-over-link", G_CALLBACK(linkhover), c);
 509         g_signal_connect(G_OBJECT(c->view), "create-web-view", G_CALLBACK(createwindow), c);
 510         g_signal_connect(G_OBJECT(c->view), "new-window-policy-decision-requested", G_CALLBACK(decidewindow), c);
 511         g_signal_connect(G_OBJECT(c->view), "mime-type-policy-decision-requested", G_CALLBACK(decidedownload), c);
 512         g_signal_connect(G_OBJECT(c->view), "window-object-cleared", G_CALLBACK(windowobjectcleared), c);
 513         g_signal_connect(G_OBJECT(c->view), "notify::load-status", G_CALLBACK(loadstatuschange), c);
 514         g_signal_connect(G_OBJECT(c->view), "notify::progress", G_CALLBACK(progresschange), c);
 515         g_signal_connect(G_OBJECT(c->view), "download-requested", G_CALLBACK(initdownload), c);
 516         g_signal_connect(G_OBJECT(c->view), "button-release-event", G_CALLBACK(buttonrelease), c);
 517         g_signal_connect(G_OBJECT(c->view), "populate-popup", G_CALLBACK(populatepopup), c);
 518
 519         /* Indicator */
 520         c->indicator = gtk_drawing_area_new();
 521         gtk_widget_set_size_request(c->indicator, 0, 2);
 522         g_signal_connect (G_OBJECT (c->indicator), "expose_event",
 523                         G_CALLBACK (exposeindicator), c);
 524
 525         /* Arranging */
 526         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 527         gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 528         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 529         gtk_container_add(GTK_CONTAINER(c->vbox), c->indicator);
 530
 531         /* Setup */
 532         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->indicator, FALSE, FALSE, 0, GTK_PACK_START);
 533         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE, TRUE, 0, GTK_PACK_START);
 534         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 535         gtk_widget_show(c->vbox);
 536         gtk_widget_show(c->indicator);
 537         gtk_widget_show(c->scroll);
 538         gtk_widget_show(GTK_WIDGET(c->view));
 539         gtk_widget_show(c->win);
 540         gtk_window_set_geometry_hints(GTK_WINDOW(c->win), NULL, &hints, GDK_HINT_MIN_SIZE);
 541         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 542         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 543         webkit_web_view_set_full_content_zoom(c->view, TRUE);
 544         frame = webkit_web_view_get_main_frame(c->view);
 545         runscript(frame);
 546         settings = webkit_web_view_get_settings(c->view);
 547         if(!(ua = getenv("SURF_USERAGENT")))
 548                 ua = useragent;
 549         g_object_set(G_OBJECT(settings), "user-agent", ua, NULL);
 550         uri = g_strconcat("file://", stylefile, NULL);
 551         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
 552         g_object_set(G_OBJECT(settings), "auto-load-images", loadimage, NULL);
 553         g_object_set(G_OBJECT(settings), "enable-plugins", plugin, NULL);
 554         g_object_set(G_OBJECT(settings), "enable-scripts", script, NULL);
 555         g_object_set(G_OBJECT(settings), "enable-spatial-navigation", SPATIAL_BROWSING, NULL);
 556
 557         g_free(uri);
 558
 559         setatom(c, AtomFind, "");
 560         setatom(c, AtomUri, "about:blank");
 561         if(HIDE_BACKGROUND)
 562                 webkit_web_view_set_transparent(c->view, TRUE);
 563
 564         c->title = NULL;
 565         c->next = clients;
 566         clients = c;
 567         if(showxid) {
 568                 gdk_display_sync(gtk_widget_get_display(c->win));
 569                 printf("%u\n", (guint)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 570                 fflush(NULL);
 571                 if (fclose(stdout) != 0) {
 572                         die("Error closing stdout");
 573                 }
 574         }
 575         return c;
 576 }
 577
 578 void
 579 newrequest(SoupSession *s, SoupMessage *msg, gpointer v) {
 580         SoupMessageHeaders *h = msg->request_headers;
 581         SoupURI *uri;
 582         const char *c;
 583
 584         soup_message_headers_remove(h, "Cookie");
 585         uri = soup_message_get_uri(msg);
 586         if((c = getcookies(uri)))
 587                 soup_message_headers_append(h, "Cookie", c);
 588         g_signal_connect_after(G_OBJECT(msg), "got-headers", G_CALLBACK(gotheaders), NULL);
 589 }
 590
 591 void
 592 newwindow(Client *c, const Arg *arg, gboolean noembed) {
 593         guint i = 0;
 594         const char *cmd[10], *uri;
 595         const Arg a = { .v = (void *)cmd };
 596         char tmp[64];
 597
 598         cmd[i++] = progname;
 599         if(embed && !noembed) {
 600                 cmd[i++] = "-e";
 601                 snprintf(tmp, LENGTH(tmp), "%u\n", (int)embed);
 602                 cmd[i++] = tmp;
 603         }
 604         if(!script)
 605                 cmd[i++] = "-s";
 606         if(!plugin)
 607                 cmd[i++] = "-p";
 608         if(!loadimage)
 609                 cmd[i++] = "-i";
 610         if(showxid)
 611                 cmd[i++] = "-x";
 612         cmd[i++] = "--";
 613         uri = arg->v ? (char *)arg->v : c->linkhover;
 614         if(uri)
 615                 cmd[i++] = uri;
 616         cmd[i++] = NULL;
 617         spawn(NULL, &a);
 618 }
 619
 620 static void
 621 populatepopup(WebKitWebView *web, GtkMenu *menu, Client *c) {
 622         GList *items = gtk_container_get_children(GTK_CONTAINER(menu));
 623
 624         for(GList *l = items; l; l = l->next) {
 625                 g_signal_connect(l->data, "activate", G_CALLBACK(popupactivate), c);
 626         }
 627
 628         g_list_free(items);
 629 }
 630
 631 static void
 632 popupactivate(GtkMenuItem *menu, Client *c) {
 633         /*
 634          * context-menu-action-2000     open link
 635          * context-menu-action-1        open link in window
 636          * context-menu-action-2        download linked file
 637          * context-menu-action-3        copy link location
 638          * context-menu-action-13       reload
 639          * context-menu-action-10       back
 640          * context-menu-action-11       forward
 641          * context-menu-action-12       stop
 642          */
 643
 644         GtkAction *a = NULL;
 645         const char *name;
 646         GtkClipboard *prisel;
 647
 648         a = gtk_activatable_get_related_action(GTK_ACTIVATABLE(menu));
 649         if(a == NULL)
 650                 return;
 651
 652         name = gtk_action_get_name(a);
 653         if(!g_strcmp0(name, "context-menu-action-3")) {
 654                 prisel = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
 655                 gtk_clipboard_set_text(prisel, c->linkhover, -1);
 656         }
 657 }
 658
 659 void
 660 pasteuri(GtkClipboard *clipboard, const char *text, gpointer d) {
 661         Arg arg = {.v = text };
 662         if(text != NULL)
 663                 loaduri((Client *) d, &arg);
 664 }
 665
 666 void
 667 print(Client *c, const Arg *arg) {
 668         webkit_web_frame_print(webkit_web_view_get_main_frame(c->view));
 669 }
 670
 671 GdkFilterReturn
 672 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 673         Client *c = (Client *)d;
 674         XPropertyEvent *ev;
 675         Arg arg;
 676
 677         if(((XEvent *)e)->type == PropertyNotify) {
 678                 ev = &((XEvent *)e)->xproperty;
 679                 if(ev->state == PropertyNewValue) {
 680                         if(ev->atom == atoms[AtomFind]) {
 681                                 arg.b = TRUE;
 682                                 find(c, &arg);
 683                                 return GDK_FILTER_REMOVE;
 684                         }
 685                         else if(ev->atom == atoms[AtomGo]) {
 686                                 arg.v = getatom(c, AtomGo);
 687                                 loaduri(c, &arg);
 688                                 return GDK_FILTER_REMOVE;
 689                         }
 690                 }
 691         }
 692         return GDK_FILTER_CONTINUE;
 693 }
 694
 695 void
 696 progresschange(WebKitWebView *view, GParamSpec *pspec, Client *c) {
 697         c->progress = webkit_web_view_get_progress(c->view) * 100;
 698         update(c);
 699 }
 700
 701 void
 702 reload(Client *c, const Arg *arg) {
 703         gboolean nocache = *(gboolean *)arg;
 704         if(nocache)
 705                  webkit_web_view_reload_bypass_cache(c->view);
 706         else
 707                  webkit_web_view_reload(c->view);
 708 }
 709
 710 void
 711 scroll_h(Client *c, const Arg *arg) {
 712         scroll(gtk_scrolled_window_get_hadjustment(
 713                                 GTK_SCROLLED_WINDOW(c->scroll)), arg);
 714 }
 715
 716 void
 717 scroll_v(Client *c, const Arg *arg) {
 718         scroll(gtk_scrolled_window_get_vadjustment(
 719                                 GTK_SCROLLED_WINDOW(c->scroll)), arg);
 720 }
 721
 722 void
 723 scroll(GtkAdjustment *a, const Arg *arg) {
 724         gdouble v;
 725
 726         v = gtk_adjustment_get_value(a);
 727         switch (arg->i){
 728         case +10000:
 729         case -10000:
 730                 v += gtk_adjustment_get_page_increment(a) *
 731                         (arg->i / 10000);
 732                 break;
 733         case +20000:
 734         case -20000:
 735         default:
 736                 v += gtk_adjustment_get_step_increment(a) * arg->i;
 737         }
 738
 739         v = MAX(v, 0.0);
 740         v = MIN(v, gtk_adjustment_get_upper(a) -
 741                         gtk_adjustment_get_page_size(a));
 742         gtk_adjustment_set_value(a, v);
 743 }
 744
 745 void
 746 setcookie(SoupCookie *c) {
 747         int lock;
 748
 749         lock = open(cookiefile, 0);
 750         flock(lock, LOCK_EX);
 751         SoupDate *e;
 752         SoupCookieJar *j = soup_cookie_jar_text_new(cookiefile, FALSE);
 753         c = soup_cookie_copy(c);
 754         if(c->expires == NULL && sessiontime) {
 755                 e = soup_date_new_from_time_t(time(NULL) + sessiontime);
 756                 soup_cookie_set_expires(c, e);
 757         }
 758         soup_cookie_jar_add_cookie(j, c);
 759         g_object_unref(j);
 760         flock(lock, LOCK_UN);
 761         close(lock);
 762 }
 763
 764 void
 765 setatom(Client *c, int a, const char *v) {
 766         XSync(dpy, False);
 767         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window), atoms[a],
 768                         XA_STRING, 8, PropModeReplace, (unsigned char *)v,
 769                         strlen(v) + 1);
 770 }
 771
 772 void
 773 setup(void) {
 774         char *proxy;
 775         char *new_proxy;
 776         SoupURI *puri;
 777         SoupSession *s;
 778
 779         /* clean up any zombies immediately */
 780         sigchld(0);
 781         gtk_init(NULL, NULL);
 782         if (!g_thread_supported())
 783                 g_thread_init(NULL);
 784
 785         dpy = GDK_DISPLAY();
 786
 787         /* atoms */
 788         atoms[AtomFind] = XInternAtom(dpy, "_SURF_FIND", False);
 789         atoms[AtomGo] = XInternAtom(dpy, "_SURF_GO", False);
 790         atoms[AtomUri] = XInternAtom(dpy, "_SURF_URI", False);
 791
 792         /* dirs and files */
 793         cookiefile = buildpath(cookiefile);
 794         scriptfile = buildpath(scriptfile);
 795         stylefile = buildpath(stylefile);
 796
 797         /* request handler */
 798         s = webkit_get_default_session();
 799         soup_session_remove_feature_by_type(s, soup_cookie_get_type());
 800         soup_session_remove_feature_by_type(s, soup_cookie_jar_get_type());
 801         g_signal_connect_after(G_OBJECT(s), "request-started", G_CALLBACK(newrequest), NULL);
 802
 803         /* ssl */
 804         g_object_set(G_OBJECT(s), "ssl-ca-file", cafile, NULL);
 805         g_object_set(G_OBJECT(s), "ssl-strict", strictssl, NULL);
 806
 807         /* proxy */
 808         if((proxy = getenv("http_proxy")) && strcmp(proxy, "")) {
 809                 new_proxy = g_strrstr(proxy, "http://") ? g_strdup(proxy) :
 810                         g_strdup_printf("http://%s", proxy);
 811                 puri = soup_uri_new(new_proxy);
 812                 g_object_set(G_OBJECT(s), "proxy-uri", puri, NULL);
 813                 soup_uri_free(puri);
 814                 g_free(new_proxy);
 815         }
 816 }
 817
 818 void
 819 sigchld(int unused) {
 820         if(signal(SIGCHLD, sigchld) == SIG_ERR)
 821                 die("Can't install SIGCHLD handler");
 822         while(0 < waitpid(-1, NULL, WNOHANG));
 823 }
 824
 825 void
 826 source(Client *c, const Arg *arg) {
 827         Arg a = { .b = FALSE };
 828         gboolean s;
 829
 830         s = webkit_web_view_get_view_source_mode(c->view);
 831         webkit_web_view_set_view_source_mode(c->view, !s);
 832         reload(c, &a);
 833 }
 834
 835 void
 836 spawn(Client *c, const Arg *arg) {
 837         if(fork() == 0) {
 838                 if(dpy)
 839                         close(ConnectionNumber(dpy));
 840                 setsid();
 841                 execvp(((char **)arg->v)[0], (char **)arg->v);
 842                 fprintf(stderr, "surf: execvp %s", ((char **)arg->v)[0]);
 843                 perror(" failed");
 844                 exit(0);
 845         }
 846 }
 847
 848 void
 849 eval(Client *c, const Arg *arg) {
 850         WebKitWebFrame *frame = webkit_web_view_get_main_frame(c->view);
 851         evalscript(webkit_web_frame_get_global_context(frame),
 852                         ((char **)arg->v)[0], "");
 853 }
 854
 855 void
 856 stop(Client *c, const Arg *arg) {
 857         webkit_web_view_stop_loading(c->view);
 858 }
 859
 860 void
 861 titlechange(WebKitWebView *v, WebKitWebFrame *f, const char *t, Client *c) {
 862         c->title = copystr(&c->title, t);
 863         update(c);
 864 }
 865
 866 void
 867 update(Client *c) {
 868         char *t;
 869
 870         if(c->linkhover)
 871                 t = g_strdup(c->linkhover);
 872         else if(c->progress != 100)
 873                 t = g_strdup_printf("[%i%%] %s", c->progress, c->title);
 874         else
 875                 t = g_strdup(c->title);
 876         drawindicator(c);
 877         gtk_window_set_title(GTK_WINDOW(c->win), t);
 878         g_free(t);
 879 }
 880
 881 void
 882 updatewinid(Client *c) {
 883         snprintf(winid, LENGTH(winid), "%u",
 884                         (int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 885 }
 886
 887 void
 888 usage(void) {
 889         fputs("surf - simple browser\n", stderr);
 890         die("usage: surf [-e xid] [-i] [-p] [-s] [-v] [-x] [uri]\n");
 891 }
 892
 893 void
 894 windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c) {
 895         runscript(frame);
 896 }
 897
 898 void
 899 zoom(Client *c, const Arg *arg) {
 900         c->zoomed = TRUE;
 901         if(arg->i < 0)          /* zoom out */
 902                 webkit_web_view_zoom_out(c->view);
 903         else if(arg->i > 0)     /* zoom in */
 904                 webkit_web_view_zoom_in(c->view);
 905         else {                  /* reset */
 906                 c->zoomed = FALSE;
 907                 webkit_web_view_set_zoom_level(c->view, 1.0);
 908         }
 909 }
 910
 911 int
 912 main(int argc, char *argv[]) {
 913         int i;
 914         Arg arg;
 915
 916         progname = argv[0];
 917         /* command line args */
 918         for(i = 1, arg.v = NULL; i < argc && argv[i][0] == '-' &&
 919                         argv[i][1] != '\0' && argv[i][2] == '\0'; i++) {
 920                 if(!strcmp(argv[i], "--")) {
 921                         i++;
 922                         break;
 923                 }
 924                 switch(argv[i][1]) {
 925                 case 'e':
 926                         if(++i < argc)
 927                                 embed = strtol(argv[i], NULL, 0);
 928                         else
 929                                 usage();
 930                         break;
 931                 case 'i':
 932                         loadimage = 0;
 933                         break;
 934                 case 'p':
 935                         plugin = 0;
 936                         break;
 937                 case 's':
 938                         script = 0;
 939                         break;
 940                 case 'x':
 941                         showxid = TRUE;
 942                         break;
 943                 case 'v':
 944                         die("surf-"VERSION", ©2009-2012 surf engineers, see LICENSE for details\n");
 945                 default:
 946                         usage();
 947                 }
 948         }
 949         if(i < argc)
 950                 arg.v = argv[i];
 951         setup();
 952         newclient();
 953         if(arg.v)
 954                 loaduri(clients, &arg);
 955         gtk_main();
 956         cleanup();
 957         return EXIT_SUCCESS;
 958 }