surf.c

   1 /* See LICENSE file for copyright and license details.
   2  *
   3  * To understand surf, start reading main().
   4  */
   5 #include <sys/file.h>
   6 #include <sys/types.h>
   7 #include <sys/wait.h>
   8 #include <glib.h>
   9 #include <libgen.h>
  10 #include <limits.h>
  11 #include <pwd.h>
  12 #include <regex.h>
  13 #include <signal.h>
  14 #include <stdarg.h>
  15 #include <stdio.h>
  16 #include <stdlib.h>
  17 #include <string.h>
  18 #include <unistd.h>
  19
  20 #include <gdk/gdk.h>
  21 #include <gdk/gdkkeysyms.h>
  22 #include <gdk/gdkx.h>
  23 #include <glib/gstdio.h>
  24 #include <gtk/gtk.h>
  25 #include <gtk/gtkx.h>
  26 #include <gcr/gcr.h>
  27 #include <JavaScriptCore/JavaScript.h>
  28 #include <webkit2/webkit2.h>
  29 #include <X11/X.h>
  30 #include <X11/Xatom.h>
  31
  32 #include "arg.h"
  33
  34 #define LENGTH(x)               (sizeof(x) / sizeof(x[0]))
  35 #define CLEANMASK(mask)         (mask & (MODKEY|GDK_SHIFT_MASK))
  36 #define SETB(p, s)              [p] = { { .b = s }, }
  37 #define SETI(p, s)              [p] = { { .i = s }, }
  38 #define SETV(p, s)              [p] = { { .v = s }, }
  39 #define SETF(p, s)              [p] = { { .f = s }, }
  40 #define FSETB(p, s)             [p] = { { .b = s }, 1 }
  41 #define FSETI(p, s)             [p] = { { .i = s }, 1 }
  42 #define FSETV(p, s)             [p] = { { .v = s }, 1 }
  43 #define FSETF(p, s)             [p] = { { .f = s }, 1 }
  44 #define CSETB(p, s)             [p] = (Parameter){ { .b = s }, 1 }
  45 #define CSETI(p, s)             [p] = (Parameter){ { .i = s }, 1 }
  46 #define CSETV(p, s)             [p] = (Parameter){ { .v = s }, 1 }
  47 #define CSETF(p, s)             [p] = (Parameter){ { .f = s }, 1 }
  48
  49 enum { AtomFind, AtomGo, AtomUri, AtomLast };
  50
  51 enum {
  52         OnDoc   = WEBKIT_HIT_TEST_RESULT_CONTEXT_DOCUMENT,
  53         OnLink  = WEBKIT_HIT_TEST_RESULT_CONTEXT_LINK,
  54         OnImg   = WEBKIT_HIT_TEST_RESULT_CONTEXT_IMAGE,
  55         OnMedia = WEBKIT_HIT_TEST_RESULT_CONTEXT_MEDIA,
  56         OnEdit  = WEBKIT_HIT_TEST_RESULT_CONTEXT_EDITABLE,
  57         OnBar   = WEBKIT_HIT_TEST_RESULT_CONTEXT_SCROLLBAR,
  58         OnSel   = WEBKIT_HIT_TEST_RESULT_CONTEXT_SELECTION,
  59         OnAny   = OnDoc | OnLink | OnImg | OnMedia | OnEdit | OnBar | OnSel,
  60 };
  61
  62 typedef enum {
  63         AcceleratedCanvas,
  64         CaretBrowsing,
  65         Certificate,
  66         CookiePolicies,
  67         DiskCache,
  68         DNSPrefetch,
  69         FontSize,
  70         FrameFlattening,
  71         Geolocation,
  72         HideBackground,
  73         Inspector,
  74         JavaScript,
  75         KioskMode,
  76         LoadImages,
  77         MediaManualPlay,
  78         Plugins,
  79         PreferredLanguages,
  80         RunInFullscreen,
  81         ScrollBars,
  82         ShowIndicators,
  83         SiteQuirks,
  84         SpellChecking,
  85         SpellLanguages,
  86         StrictTLS,
  87         Style,
  88         ZoomLevel,
  89         ParameterLast,
  90 } ParamName;
  91
  92 typedef union {
  93         int b;
  94         int i;
  95         float f;
  96         const void *v;
  97 } Arg;
  98
  99 typedef struct {
 100         Arg val;
 101         int force;
 102 } Parameter;
 103
 104 typedef struct Client {
 105         GtkWidget *win;
 106         WebKitWebView *view;
 107         WebKitWebInspector *inspector;
 108         WebKitFindController *finder;
 109         WebKitHitTestResult *mousepos;
 110         GTlsCertificate *cert, *failedcert;
 111         GTlsCertificateFlags tlserr;
 112         Window xid;
 113         int progress, fullscreen, https, insecure, errorpage;
 114         const char *title, *overtitle, *targeturi;
 115         const char *needle;
 116         struct Client *next;
 117 } Client;
 118
 119 typedef struct {
 120         guint mod;
 121         guint keyval;
 122         void (*func)(Client *c, const Arg *a);
 123         const Arg arg;
 124 } Key;
 125
 126 typedef struct {
 127         unsigned int target;
 128         unsigned int mask;
 129         guint button;
 130         void (*func)(Client *c, const Arg *a, WebKitHitTestResult *h);
 131         const Arg arg;
 132         unsigned int stopevent;
 133 } Button;
 134
 135 typedef struct {
 136         const char *uri;
 137         Parameter config[ParameterLast];
 138         regex_t re;
 139 } UriParameters;
 140
 141 typedef struct {
 142         char *regex;
 143         char *file;
 144         regex_t re;
 145 } SiteSpecific;
 146
 147 /* Surf */
 148 static void usage(void);
 149 static void die(const char *errstr, ...);
 150 static void setup(void);
 151 static void sigchld(int unused);
 152 static void sighup(int unused);
 153 static char *buildfile(const char *path);
 154 static char *buildpath(const char *path);
 155 static const char *getuserhomedir(const char *user);
 156 static const char *getcurrentuserhomedir(void);
 157 static Client *newclient(Client *c);
 158 static void loaduri(Client *c, const Arg *a);
 159 static const char *geturi(Client *c);
 160 static void setatom(Client *c, int a, const char *v);
 161 static const char *getatom(Client *c, int a);
 162 static void updatetitle(Client *c);
 163 static void gettogglestats(Client *c);
 164 static void getpagestats(Client *c);
 165 static WebKitCookieAcceptPolicy cookiepolicy_get(void);
 166 static char cookiepolicy_set(const WebKitCookieAcceptPolicy p);
 167 static void seturiparameters(Client *c, const char *uri);
 168 static void setparameter(Client *c, int refresh, ParamName p, const Arg *a);
 169 static const char *getcert(const char *uri);
 170 static void setcert(Client *c, const char *file);
 171 static const char *getstyle(const char *uri);
 172 static void setstyle(Client *c, const char *file);
 173 static void runscript(Client *c);
 174 static void evalscript(Client *c, const char *jsstr, ...);
 175 static void updatewinid(Client *c);
 176 static void handleplumb(Client *c, const char *uri);
 177 static void newwindow(Client *c, const Arg *a, int noembed);
 178 static void spawn(Client *c, const Arg *a);
 179 static void destroyclient(Client *c);
 180 static void cleanup(void);
 181
 182 /* GTK/WebKit */
 183 static WebKitWebView *newview(Client *c, WebKitWebView *rv);
 184 static void initwebextensions(WebKitWebContext *wc, Client *c);
 185 static GtkWidget *createview(WebKitWebView *v, WebKitNavigationAction *a,
 186                              Client *c);
 187 static gboolean buttonreleased(GtkWidget *w, GdkEvent *e, Client *c);
 188 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event,
 189                                 gpointer d);
 190 static gboolean winevent(GtkWidget *w, GdkEvent *e, Client *c);
 191 static void showview(WebKitWebView *v, Client *c);
 192 static GtkWidget *createwindow(Client *c);
 193 static gboolean loadfailedtls(WebKitWebView *v, gchar *uri,
 194                               GTlsCertificate *cert,
 195                               GTlsCertificateFlags err, Client *c);
 196 static void loadchanged(WebKitWebView *v, WebKitLoadEvent e, Client *c);
 197 static void progresschanged(WebKitWebView *v, GParamSpec *ps, Client *c);
 198 static void titlechanged(WebKitWebView *view, GParamSpec *ps, Client *c);
 199 static void mousetargetchanged(WebKitWebView *v, WebKitHitTestResult *h,
 200                                guint modifiers, Client *c);
 201 static gboolean permissionrequested(WebKitWebView *v,
 202                                     WebKitPermissionRequest *r, Client *c);
 203 static gboolean decidepolicy(WebKitWebView *v, WebKitPolicyDecision *d,
 204                              WebKitPolicyDecisionType dt, Client *c);
 205 static void decidenavigation(WebKitPolicyDecision *d, Client *c);
 206 static void decidenewwindow(WebKitPolicyDecision *d, Client *c);
 207 static void decideresource(WebKitPolicyDecision *d, Client *c);
 208 static void insecurecontent(WebKitWebView *v, WebKitInsecureContentEvent e,
 209                             Client *c);
 210 static void downloadstarted(WebKitWebContext *wc, WebKitDownload *d,
 211                             Client *c);
 212 static void responsereceived(WebKitDownload *d, GParamSpec *ps, Client *c);
 213 static void download(Client *c, WebKitURIResponse *r);
 214 static void closeview(WebKitWebView *v, Client *c);
 215 static void destroywin(GtkWidget* w, Client *c);
 216
 217 /* Hotkeys */
 218 static void pasteuri(GtkClipboard *clipboard, const char *text, gpointer d);
 219 static void reload(Client *c, const Arg *a);
 220 static void print(Client *c, const Arg *a);
 221 static void showcert(Client *c, const Arg *a);
 222 static void clipboard(Client *c, const Arg *a);
 223 static void zoom(Client *c, const Arg *a);
 224 static void scroll(Client *c, const Arg *a);
 225 static void navigate(Client *c, const Arg *a);
 226 static void stop(Client *c, const Arg *a);
 227 static void toggle(Client *c, const Arg *a);
 228 static void togglefullscreen(Client *c, const Arg *a);
 229 static void togglecookiepolicy(Client *c, const Arg *a);
 230 static void toggleinspector(Client *c, const Arg *a);
 231 static void find(Client *c, const Arg *a);
 232
 233 /* Buttons */
 234 static void clicknavigate(Client *c, const Arg *a, WebKitHitTestResult *h);
 235 static void clicknewwindow(Client *c, const Arg *a, WebKitHitTestResult *h);
 236 static void clickexternplayer(Client *c, const Arg *a, WebKitHitTestResult *h);
 237
 238 static char winid[64];
 239 static char togglestats[11];
 240 static char pagestats[2];
 241 static Atom atoms[AtomLast];
 242 static Window embed;
 243 static int showxid;
 244 static int cookiepolicy;
 245 static Display *dpy;
 246 static Client *clients;
 247 static GdkDevice *gdkkb;
 248 static char *stylefile;
 249 static const char *useragent;
 250 static Parameter *curconfig;
 251 char *argv0;
 252
 253 /* configuration, allows nested code to access above variables */
 254 #include "config.h"
 255
 256 void
 257 usage(void)
 258 {
 259         die("usage: %s [-bBdDfFgGiIkKmMnNpPsStTvx] [-a cookiepolicies ] "
 260             "[-c cookiefile] [-C stylefile] [-e xid] [-r scriptfile] "
 261             "[-u useragent] [-z zoomlevel] [uri]\n", basename(argv0));
 262 }
 263
 264 void
 265 die(const char *errstr, ...)
 266 {
 267         va_list ap;
 268
 269         va_start(ap, errstr);
 270         vfprintf(stderr, errstr, ap);
 271         va_end(ap);
 272         exit(1);
 273 }
 274
 275 void
 276 setup(void)
 277 {
 278         GdkDisplay *gdpy;
 279         int i, j;
 280
 281         /* clean up any zombies immediately */
 282         sigchld(0);
 283         if (signal(SIGHUP, sighup) == SIG_ERR)
 284                 die("Can't install SIGHUP handler");
 285
 286         if (!(dpy = XOpenDisplay(NULL)))
 287                 die("Can't open default display");
 288
 289         /* atoms */
 290         atoms[AtomFind] = XInternAtom(dpy, "_SURF_FIND", False);
 291         atoms[AtomGo] = XInternAtom(dpy, "_SURF_GO", False);
 292         atoms[AtomUri] = XInternAtom(dpy, "_SURF_URI", False);
 293
 294         gtk_init(NULL, NULL);
 295
 296         gdpy = gdk_display_get_default();
 297
 298         curconfig = defconfig;
 299
 300         /* dirs and files */
 301         cookiefile = buildfile(cookiefile);
 302         scriptfile = buildfile(scriptfile);
 303         cachedir   = buildpath(cachedir);
 304         certdir    = buildpath(certdir);
 305
 306         gdkkb = gdk_seat_get_keyboard(gdk_display_get_default_seat(gdpy));
 307
 308         for (i = 0; i < LENGTH(certs); ++i) {
 309                 if (!regcomp(&(certs[i].re), certs[i].regex, REG_EXTENDED)) {
 310                         certs[i].file = g_strconcat(certdir, "/", certs[i].file,
 311                                                     NULL);
 312                 } else {
 313                         fprintf(stderr, "Could not compile regex: %s\n",
 314                                 certs[i].regex);
 315                         certs[i].regex = NULL;
 316                 }
 317         }
 318
 319         if (!stylefile) {
 320                 styledir = buildpath(styledir);
 321                 for (i = 0; i < LENGTH(styles); ++i) {
 322                         if (!regcomp(&(styles[i].re), styles[i].regex,
 323                             REG_EXTENDED)) {
 324                                 styles[i].file = g_strconcat(styledir, "/",
 325                                                     styles[i].file, NULL);
 326                         } else {
 327                                 fprintf(stderr, "Could not compile regex: %s\n",
 328                                         styles[i].regex);
 329                                 styles[i].regex = NULL;
 330                         }
 331                 }
 332                 g_free(styledir);
 333         } else {
 334                 stylefile = buildfile(stylefile);
 335         }
 336
 337         for (i = 0; i < LENGTH(uriparams); ++i) {
 338                 if (!regcomp(&(uriparams[i].re), uriparams[i].uri,
 339                     REG_EXTENDED)) {
 340                         /* copy default parameters if they are not already set
 341                          * or if they are forced */
 342                         for (j = 0; j < ParameterLast; ++j) {
 343                                 if (!uriparams[i].config[j].force ||
 344                                     defconfig[j].force)
 345                                         uriparams[i].config[j] = defconfig[j];
 346                         }
 347                 } else {
 348                         fprintf(stderr, "Could not compile regex: %s\n",
 349                                 uriparams[i].uri);
 350                         uriparams[i].uri = NULL;
 351                 }
 352         }
 353 }
 354
 355 void
 356 sigchld(int unused)
 357 {
 358         if (signal(SIGCHLD, sigchld) == SIG_ERR)
 359                 die("Can't install SIGCHLD handler");
 360         while (waitpid(-1, NULL, WNOHANG) > 0)
 361                 ;
 362 }
 363
 364 void
 365 sighup(int unused)
 366 {
 367         Arg a = { .b = 0 };
 368         Client *c;
 369
 370         for (c = clients; c; c = c->next)
 371                 reload(c, &a);
 372 }
 373
 374 char *
 375 buildfile(const char *path)
 376 {
 377         char *dname, *bname, *bpath, *fpath;
 378         FILE *f;
 379
 380         dname = g_path_get_dirname(path);
 381         bname = g_path_get_basename(path);
 382
 383         bpath = buildpath(dname);
 384         g_free(dname);
 385
 386         fpath = g_build_filename(bpath, bname, NULL);
 387         g_free(bpath);
 388         g_free(bname);
 389
 390         if (!(f = fopen(fpath, "a")))
 391                 die("Could not open file: %s\n", fpath);
 392
 393         g_chmod(fpath, 0600); /* always */
 394         fclose(f);
 395
 396         return fpath;
 397 }
 398
 399 static const char*
 400 getuserhomedir(const char *user)
 401 {
 402         struct passwd *pw = getpwnam(user);
 403
 404         if (!pw)
 405                 die("Can't get user %s login information.\n", user);
 406
 407         return pw->pw_dir;
 408 }
 409
 410 static const char*
 411 getcurrentuserhomedir(void)
 412 {
 413         const char *homedir;
 414         const char *user;
 415         struct passwd *pw;
 416
 417         homedir = getenv("HOME");
 418         if (homedir)
 419                 return homedir;
 420
 421         user = getenv("USER");
 422         if (user)
 423                 return getuserhomedir(user);
 424
 425         pw = getpwuid(getuid());
 426         if (!pw)
 427                 die("Can't get current user home directory\n");
 428
 429         return pw->pw_dir;
 430 }
 431
 432 char *
 433 buildpath(const char *path)
 434 {
 435         char *apath, *name, *p, *fpath;
 436         const char *homedir;
 437
 438         if (path[0] == '~') {
 439                 if (path[1] == '/' || path[1] == '\0') {
 440                         p = (char *)&path[1];
 441                         homedir = getcurrentuserhomedir();
 442                 } else {
 443                         if ((p = strchr(path, '/')))
 444                                 name = g_strndup(&path[1], --p - path);
 445                         else
 446                                 name = g_strdup(&path[1]);
 447
 448                         homedir = getuserhomedir(name);
 449                         g_free(name);
 450                 }
 451                 apath = g_build_filename(homedir, p, NULL);
 452         } else {
 453                 apath = g_strdup(path);
 454         }
 455
 456         /* creating directory */
 457         if (g_mkdir_with_parents(apath, 0700) < 0)
 458                 die("Could not access directory: %s\n", apath);
 459
 460         fpath = realpath(apath, NULL);
 461         g_free(apath);
 462
 463         return fpath;
 464 }
 465
 466 Client *
 467 newclient(Client *rc)
 468 {
 469         Client *c;
 470
 471         if (!(c = calloc(1, sizeof(Client))))
 472                 die("Cannot malloc!\n");
 473
 474         c->next = clients;
 475         clients = c;
 476
 477         c->progress = 100;
 478         c->view = newview(c, rc ? rc->view : NULL);
 479
 480         return c;
 481 }
 482
 483 void
 484 loaduri(Client *c, const Arg *a)
 485 {
 486         struct stat st;
 487         char *url, *path;
 488         const char *uri = a->v;
 489
 490         if (g_strcmp0(uri, "") == 0)
 491                 return;
 492
 493         if (g_str_has_prefix(uri, "http://")  ||
 494             g_str_has_prefix(uri, "https://") ||
 495             g_str_has_prefix(uri, "file://")  ||
 496             g_str_has_prefix(uri, "about:")) {
 497                 url = g_strdup(uri);
 498         } else if (!stat(uri, &st) && (path = realpath(uri, NULL))) {
 499                 url = g_strdup_printf("file://%s", path);
 500                 free(path);
 501         } else {
 502                 url = g_strdup_printf("http://%s", uri);
 503         }
 504
 505         setatom(c, AtomUri, url);
 506
 507         if (strcmp(url, geturi(c)) == 0) {
 508                 reload(c, a);
 509         } else {
 510                 webkit_web_view_load_uri(c->view, url);
 511                 updatetitle(c);
 512         }
 513
 514         g_free(url);
 515 }
 516
 517 const char *
 518 geturi(Client *c)
 519 {
 520         const char *uri;
 521
 522         if (!(uri = webkit_web_view_get_uri(c->view)))
 523                 uri = "about:blank";
 524         return uri;
 525 }
 526
 527 void
 528 setatom(Client *c, int a, const char *v)
 529 {
 530         XSync(dpy, False);
 531         XChangeProperty(dpy, c->xid,
 532                         atoms[a], XA_STRING, 8, PropModeReplace,
 533                         (unsigned char *)v, strlen(v) + 1);
 534 }
 535
 536 const char *
 537 getatom(Client *c, int a)
 538 {
 539         static char buf[BUFSIZ];
 540         Atom adummy;
 541         int idummy;
 542         unsigned long ldummy;
 543         unsigned char *p = NULL;
 544
 545         XGetWindowProperty(dpy, c->xid, atoms[a], 0L, BUFSIZ, False, XA_STRING,
 546                            &adummy, &idummy, &ldummy, &ldummy, &p);
 547         if (p)
 548                 strncpy(buf, (char *)p, LENGTH(buf) - 1);
 549         else
 550                 buf[0] = '\0';
 551         XFree(p);
 552
 553         return buf;
 554 }
 555
 556 void
 557 updatetitle(Client *c)
 558 {
 559         char *title;
 560         const char *name = c->overtitle ? c->overtitle :
 561                            c->title ? c->title : "";
 562
 563         if (curconfig[ShowIndicators].val.b) {
 564                 gettogglestats(c);
 565                 getpagestats(c);
 566
 567                 if (c->progress != 100)
 568                         title = g_strdup_printf("[%i%%] %s:%s | %s",
 569                                 c->progress, togglestats, pagestats, name);
 570                 else
 571                         title = g_strdup_printf("%s:%s | %s",
 572                                 togglestats, pagestats, name);
 573
 574                 gtk_window_set_title(GTK_WINDOW(c->win), title);
 575                 g_free(title);
 576         } else {
 577                 gtk_window_set_title(GTK_WINDOW(c->win), name);
 578         }
 579 }
 580
 581 void
 582 gettogglestats(Client *c)
 583 {
 584         togglestats[0] = cookiepolicy_set(cookiepolicy_get());
 585         togglestats[1] = curconfig[CaretBrowsing].val.b ?   'C' : 'c';
 586         togglestats[2] = curconfig[Geolocation].val.b ?     'G' : 'g';
 587         togglestats[3] = curconfig[DiskCache].val.b ?       'D' : 'd';
 588         togglestats[4] = curconfig[LoadImages].val.b ?      'I' : 'i';
 589         togglestats[5] = curconfig[JavaScript].val.b ?      'S' : 's';
 590         togglestats[6] = curconfig[Plugins].val.b ?         'V' : 'v';
 591         togglestats[7] = curconfig[Style].val.b ?           'M' : 'm';
 592         togglestats[8] = curconfig[FrameFlattening].val.b ? 'F' : 'f';
 593         togglestats[9] = curconfig[StrictTLS].val.b ?       'T' : 't';
 594         togglestats[10] = '\0';
 595 }
 596
 597 void
 598 getpagestats(Client *c)
 599 {
 600         if (c->https)
 601                 pagestats[0] = (c->tlserr || c->insecure) ?  'U' : 'T';
 602         else
 603                 pagestats[0] = '-';
 604         pagestats[1] = '\0';
 605 }
 606
 607 WebKitCookieAcceptPolicy
 608 cookiepolicy_get(void)
 609 {
 610         switch (((char *)curconfig[CookiePolicies].val.v)[cookiepolicy]) {
 611         case 'a':
 612                 return WEBKIT_COOKIE_POLICY_ACCEPT_NEVER;
 613         case '@':
 614                 return WEBKIT_COOKIE_POLICY_ACCEPT_NO_THIRD_PARTY;
 615         default: /* fallthrough */
 616         case 'A':
 617                 return WEBKIT_COOKIE_POLICY_ACCEPT_ALWAYS;
 618         }
 619 }
 620
 621 char
 622 cookiepolicy_set(const WebKitCookieAcceptPolicy p)
 623 {
 624         switch (p) {
 625         case WEBKIT_COOKIE_POLICY_ACCEPT_NEVER:
 626                 return 'a';
 627         case WEBKIT_COOKIE_POLICY_ACCEPT_NO_THIRD_PARTY:
 628                 return '@';
 629         default: /* fallthrough */
 630         case WEBKIT_COOKIE_POLICY_ACCEPT_ALWAYS:
 631                 return 'A';
 632         }
 633 }
 634
 635 void
 636 seturiparameters(Client *c, const char *uri)
 637 {
 638         int i;
 639
 640         for (i = 0; i < LENGTH(uriparams); ++i) {
 641                 if (uriparams[i].uri &&
 642                     !regexec(&(uriparams[i].re), uri, 0, NULL, 0)) {
 643                         curconfig = uriparams[i].config;
 644                         break;
 645                 }
 646         }
 647
 648         for (i = 0; i < ParameterLast; ++i)
 649                 setparameter(c, 0, i, &curconfig[i].val);
 650 }
 651
 652 void
 653 setparameter(Client *c, int refresh, ParamName p, const Arg *a)
 654 {
 655         GdkRGBA bgcolor = { 0 };
 656         WebKitSettings *s = webkit_web_view_get_settings(c->view);
 657
 658         switch (p) {
 659         case AcceleratedCanvas:
 660                 webkit_settings_set_enable_accelerated_2d_canvas(s, a->b);
 661                 break;
 662         case CaretBrowsing:
 663                 webkit_settings_set_enable_caret_browsing(s, a->b);
 664                 refresh = 0;
 665                 break;
 666         case Certificate:
 667                 if (a->b)
 668                         setcert(c, geturi(c));
 669                 return; /* do not update */
 670         case CookiePolicies:
 671                 webkit_cookie_manager_set_accept_policy(
 672                     webkit_web_context_get_cookie_manager(
 673                     webkit_web_view_get_context(c->view)),
 674                     cookiepolicy_get());
 675                 refresh = 0;
 676                 break;
 677         case DiskCache:
 678                 webkit_web_context_set_cache_model(
 679                     webkit_web_view_get_context(c->view), a->b ?
 680                     WEBKIT_CACHE_MODEL_WEB_BROWSER :
 681                     WEBKIT_CACHE_MODEL_DOCUMENT_VIEWER);
 682                 return; /* do not update */
 683         case DNSPrefetch:
 684                 webkit_settings_set_enable_dns_prefetching(s, a->b);
 685                 return; /* do not update */
 686         case FontSize:
 687                 webkit_settings_set_default_font_size(s, a->i);
 688                 return; /* do not update */
 689         case FrameFlattening:
 690                 webkit_settings_set_enable_frame_flattening(s, a->b);
 691                 break;
 692         case Geolocation:
 693                 refresh = 0;
 694                 break;
 695         case HideBackground:
 696                 if (a->b)
 697                         webkit_web_view_set_background_color(c->view, &bgcolor);
 698                 return; /* do not update */
 699         case Inspector:
 700                 webkit_settings_set_enable_developer_extras(s, a->b);
 701                 return; /* do not update */
 702         case JavaScript:
 703                 webkit_settings_set_enable_javascript(s, a->b);
 704                 break;
 705         case KioskMode:
 706                 return; /* do nothing */
 707         case LoadImages:
 708                 webkit_settings_set_auto_load_images(s, a->b);
 709                 break;
 710         case MediaManualPlay:
 711                 webkit_settings_set_media_playback_requires_user_gesture(s, a->b);
 712                 break;
 713         case Plugins:
 714                 webkit_settings_set_enable_plugins(s, a->b);
 715                 break;
 716         case PreferredLanguages:
 717                 return; /* do nothing */
 718         case RunInFullscreen:
 719                 return; /* do nothing */
 720         case ScrollBars:
 721                 /* Disabled until we write some WebKitWebExtension for
 722                  * manipulating the DOM directly.
 723                 enablescrollbars = !enablescrollbars;
 724                 evalscript(c, "document.documentElement.style.overflow = '%s'",
 725                     enablescrollbars ? "auto" : "hidden");
 726                 */
 727                 return; /* do not update */
 728         case ShowIndicators:
 729                 break;
 730         case SiteQuirks:
 731                 webkit_settings_set_enable_site_specific_quirks(s, a->b);
 732                 break;
 733         case SpellChecking:
 734                 webkit_web_context_set_spell_checking_enabled(
 735                     webkit_web_view_get_context(c->view), a->b);
 736                 return; /* do not update */
 737         case SpellLanguages:
 738                 return; /* do nothing */
 739         case StrictTLS:
 740                 webkit_web_context_set_tls_errors_policy(
 741                     webkit_web_view_get_context(c->view), a->b ?
 742                     WEBKIT_TLS_ERRORS_POLICY_FAIL :
 743                     WEBKIT_TLS_ERRORS_POLICY_IGNORE);
 744                 break;
 745         case Style:
 746                 if (a->b)
 747                         setstyle(c, getstyle(geturi(c)));
 748                 else
 749                         webkit_user_content_manager_remove_all_style_sheets(
 750                             webkit_web_view_get_user_content_manager(c->view));
 751                 refresh = 0;
 752                 break;
 753         case ZoomLevel:
 754                 webkit_web_view_set_zoom_level(c->view, a->f);
 755                 return; /* do not update */
 756         default:
 757                 return; /* do nothing */
 758         }
 759
 760         updatetitle(c);
 761         if (refresh)
 762                 reload(c, a);
 763 }
 764
 765 const char *
 766 getcert(const char *uri)
 767 {
 768         int i;
 769
 770         for (i = 0; i < LENGTH(certs); ++i) {
 771                 if (certs[i].regex &&
 772                     !regexec(&(certs[i].re), uri, 0, NULL, 0))
 773                         return certs[i].file;
 774         }
 775
 776         return NULL;
 777 }
 778
 779 void
 780 setcert(Client *c, const char *uri)
 781 {
 782         const char *file = getcert(uri);
 783         char *host;
 784         GTlsCertificate *cert;
 785
 786         if (!file)
 787                 return;
 788
 789         if (!(cert = g_tls_certificate_new_from_file(file, NULL))) {
 790                 fprintf(stderr, "Could not read certificate file: %s\n", file);
 791                 return;
 792         }
 793
 794         uri = strstr(uri, "://") + sizeof("://") - 1;
 795         host = strndup(uri, strstr(uri, "/") - uri);
 796
 797         webkit_web_context_allow_tls_certificate_for_host(
 798             webkit_web_view_get_context(c->view), cert, host);
 799         g_object_unref(cert);
 800
 801         free(host);
 802 }
 803
 804 const char *
 805 getstyle(const char *uri)
 806 {
 807         int i;
 808
 809         if (stylefile)
 810                 return stylefile;
 811
 812         for (i = 0; i < LENGTH(styles); ++i) {
 813                 if (styles[i].regex &&
 814                     !regexec(&(styles[i].re), uri, 0, NULL, 0))
 815                         return styles[i].file;
 816         }
 817
 818         return "";
 819 }
 820
 821 void
 822 setstyle(Client *c, const char *file)
 823 {
 824         gchar *style;
 825
 826         if (!g_file_get_contents(file, &style, NULL, NULL)) {
 827                 fprintf(stderr, "Could not read style file: %s\n", file);
 828                 return;
 829         }
 830
 831         webkit_user_content_manager_add_style_sheet(
 832             webkit_web_view_get_user_content_manager(c->view),
 833             webkit_user_style_sheet_new(style,
 834             WEBKIT_USER_CONTENT_INJECT_ALL_FRAMES,
 835             WEBKIT_USER_STYLE_LEVEL_USER,
 836             NULL, NULL));
 837
 838         g_free(style);
 839 }
 840
 841 void
 842 runscript(Client *c)
 843 {
 844         gchar *script;
 845         gsize l;
 846
 847         if (g_file_get_contents(scriptfile, &script, &l, NULL) && l)
 848                 evalscript(c, script);
 849         g_free(script);
 850 }
 851
 852 void
 853 evalscript(Client *c, const char *jsstr, ...)
 854 {
 855         va_list ap;
 856         gchar *script;
 857
 858         va_start(ap, jsstr);
 859         script = g_strdup_vprintf(jsstr, ap);
 860         va_end(ap);
 861
 862         webkit_web_view_run_javascript(c->view, script, NULL, NULL, NULL);
 863         g_free(script);
 864 }
 865
 866 void
 867 updatewinid(Client *c)
 868 {
 869         snprintf(winid, LENGTH(winid), "%lu", c->xid);
 870 }
 871
 872 void
 873 handleplumb(Client *c, const char *uri)
 874 {
 875         Arg a = (Arg)PLUMB(uri);
 876         spawn(c, &a);
 877 }
 878
 879 void
 880 newwindow(Client *c, const Arg *a, int noembed)
 881 {
 882         int i = 0;
 883         char tmp[64];
 884         const char *cmd[28], *uri;
 885         const Arg arg = { .v = cmd };
 886
 887         cmd[i++] = argv0;
 888         cmd[i++] = "-a";
 889         cmd[i++] = curconfig[CookiePolicies].val.v;
 890         cmd[i++] = curconfig[ScrollBars].val.b ? "-B" : "-b";
 891         if (cookiefile && g_strcmp0(cookiefile, "")) {
 892                 cmd[i++] = "-c";
 893                 cmd[i++] = cookiefile;
 894         }
 895         if (stylefile && g_strcmp0(stylefile, "")) {
 896                 cmd[i++] = "-C";
 897                 cmd[i++] = stylefile;
 898         }
 899         cmd[i++] = curconfig[DiskCache].val.b ? "-D" : "-d";
 900         if (embed && !noembed) {
 901                 cmd[i++] = "-e";
 902                 snprintf(tmp, LENGTH(tmp), "%lu", embed);
 903                 cmd[i++] = tmp;
 904         }
 905         cmd[i++] = curconfig[RunInFullscreen].val.b ? "-F" : "-f" ;
 906         cmd[i++] = curconfig[Geolocation].val.b ?     "-G" : "-g" ;
 907         cmd[i++] = curconfig[LoadImages].val.b ?      "-I" : "-i" ;
 908         cmd[i++] = curconfig[KioskMode].val.b ?       "-K" : "-k" ;
 909         cmd[i++] = curconfig[Style].val.b ?           "-M" : "-m" ;
 910         cmd[i++] = curconfig[Inspector].val.b ?       "-N" : "-n" ;
 911         cmd[i++] = curconfig[Plugins].val.b ?         "-P" : "-p" ;
 912         if (scriptfile && g_strcmp0(scriptfile, "")) {
 913                 cmd[i++] = "-r";
 914                 cmd[i++] = scriptfile;
 915         }
 916         cmd[i++] = curconfig[JavaScript].val.b ? "-S" : "-s";
 917         cmd[i++] = curconfig[StrictTLS].val.b ? "-T" : "-t";
 918         if (fulluseragent && g_strcmp0(fulluseragent, "")) {
 919                 cmd[i++] = "-u";
 920                 cmd[i++] = fulluseragent;
 921         }
 922         if (showxid)
 923                 cmd[i++] = "-w";
 924         /* do not keep zoom level */
 925         cmd[i++] = "--";
 926         if ((uri = a->v))
 927                 cmd[i++] = uri;
 928         cmd[i] = NULL;
 929
 930         spawn(c, &arg);
 931 }
 932
 933 void
 934 spawn(Client *c, const Arg *a)
 935 {
 936         if (fork() == 0) {
 937                 if (dpy)
 938                         close(ConnectionNumber(dpy));
 939                 setsid();
 940                 execvp(((char **)a->v)[0], (char **)a->v);
 941                 fprintf(stderr, "%s: execvp %s", argv0, ((char **)a->v)[0]);
 942                 perror(" failed");
 943                 exit(1);
 944         }
 945 }
 946
 947 void
 948 destroyclient(Client *c)
 949 {
 950         Client *p;
 951
 952         webkit_web_view_stop_loading(c->view);
 953         /* Not needed, has already been called
 954         gtk_widget_destroy(c->win);
 955          */
 956
 957         for (p = clients; p && p->next != c; p = p->next)
 958                 ;
 959         if (p)
 960                 p->next = c->next;
 961         else
 962                 clients = c->next;
 963         free(c);
 964 }
 965
 966 void
 967 cleanup(void)
 968 {
 969         while (clients)
 970                 destroyclient(clients);
 971         g_free(cookiefile);
 972         g_free(scriptfile);
 973         g_free(stylefile);
 974         g_free(cachedir);
 975         XCloseDisplay(dpy);
 976 }
 977
 978 WebKitWebView *
 979 newview(Client *c, WebKitWebView *rv)
 980 {
 981         WebKitWebView *v;
 982         WebKitSettings *settings;
 983         WebKitUserContentManager *contentmanager;
 984         WebKitWebContext *context;
 985
 986         /* Webview */
 987         if (rv) {
 988                 v = WEBKIT_WEB_VIEW(
 989                     webkit_web_view_new_with_related_view(rv));
 990         } else {
 991                 settings = webkit_settings_new_with_settings(
 992                    "auto-load-images", curconfig[LoadImages].val.b,
 993                    "default-font-size", curconfig[FontSize].val.i,
 994                    "enable-caret-browsing", curconfig[CaretBrowsing].val.b,
 995                    "enable-developer-extras", curconfig[Inspector].val.b,
 996                    "enable-dns-prefetching", curconfig[DNSPrefetch].val.b,
 997                    "enable-frame-flattening", curconfig[FrameFlattening].val.b,
 998                    "enable-html5-database", curconfig[DiskCache].val.b,
 999                    "enable-html5-local-storage", curconfig[DiskCache].val.b,
1000                    "enable-javascript", curconfig[JavaScript].val.b,
1001                    "enable-plugins", curconfig[Plugins].val.b,
1002                    "enable-accelerated-2d-canvas", curconfig[AcceleratedCanvas].val.b,
1003                    "enable-site-specific-quirks", curconfig[SiteQuirks].val.b,
1004                    "media-playback-requires-user-gesture", curconfig[MediaManualPlay].val.b,
1005                    NULL);
1006 /* For mor interesting settings, have a look at
1007  * http://webkitgtk.org/reference/webkit2gtk/stable/WebKitSettings.html */
1008
1009                 if (strcmp(fulluseragent, "")) {
1010                         webkit_settings_set_user_agent(settings, fulluseragent);
1011                 } else if (surfuseragent) {
1012                         webkit_settings_set_user_agent_with_application_details(
1013                             settings, "Surf", VERSION);
1014                 }
1015                 useragent = webkit_settings_get_user_agent(settings);
1016
1017                 contentmanager = webkit_user_content_manager_new();
1018
1019                 context = webkit_web_context_new_with_website_data_manager(
1020                           webkit_website_data_manager_new(
1021                           "base-cache-directory", cachedir,
1022                           "base-data-directory", cachedir,
1023                           NULL));
1024
1025                 /* rendering process model, can be a shared unique one
1026                  * or one for each view */
1027                 webkit_web_context_set_process_model(context,
1028                     WEBKIT_PROCESS_MODEL_MULTIPLE_SECONDARY_PROCESSES);
1029                 /* TLS */
1030                 webkit_web_context_set_tls_errors_policy(context,
1031                     curconfig[StrictTLS].val.b ? WEBKIT_TLS_ERRORS_POLICY_FAIL :
1032                     WEBKIT_TLS_ERRORS_POLICY_IGNORE);
1033                 /* disk cache */
1034                 webkit_web_context_set_cache_model(context,
1035                     curconfig[DiskCache].val.b ? WEBKIT_CACHE_MODEL_WEB_BROWSER :
1036                     WEBKIT_CACHE_MODEL_DOCUMENT_VIEWER);
1037
1038                 /* Currently only works with text file to be compatible with curl */
1039                 webkit_cookie_manager_set_persistent_storage(
1040                     webkit_web_context_get_cookie_manager(context), cookiefile,
1041                     WEBKIT_COOKIE_PERSISTENT_STORAGE_TEXT);
1042                 /* cookie policy */
1043                 webkit_cookie_manager_set_accept_policy(
1044                     webkit_web_context_get_cookie_manager(context),
1045                     cookiepolicy_get());
1046                 /* languages */
1047                 webkit_web_context_set_preferred_languages(context,
1048                     curconfig[PreferredLanguages].val.v);
1049                 webkit_web_context_set_spell_checking_languages(context,
1050                     curconfig[SpellLanguages].val.v);
1051                 webkit_web_context_set_spell_checking_enabled(context,
1052                     curconfig[SpellChecking].val.b);
1053
1054                 g_signal_connect(G_OBJECT(context), "download-started",
1055                                  G_CALLBACK(downloadstarted), c);
1056                 g_signal_connect(G_OBJECT(context), "initialize-web-extensions",
1057                                  G_CALLBACK(initwebextensions), c);
1058
1059                 v = g_object_new(WEBKIT_TYPE_WEB_VIEW,
1060                     "settings", settings,
1061                     "user-content-manager", contentmanager,
1062                     "web-context", context,
1063                     NULL);
1064         }
1065
1066         g_signal_connect(G_OBJECT(v), "notify::estimated-load-progress",
1067                          G_CALLBACK(progresschanged), c);
1068         g_signal_connect(G_OBJECT(v), "notify::title",
1069                          G_CALLBACK(titlechanged), c);
1070         g_signal_connect(G_OBJECT(v), "button-release-event",
1071                          G_CALLBACK(buttonreleased), c);
1072         g_signal_connect(G_OBJECT(v), "close",
1073                         G_CALLBACK(closeview), c);
1074         g_signal_connect(G_OBJECT(v), "create",
1075                          G_CALLBACK(createview), c);
1076         g_signal_connect(G_OBJECT(v), "decide-policy",
1077                          G_CALLBACK(decidepolicy), c);
1078         g_signal_connect(G_OBJECT(v), "insecure-content-detected",
1079                          G_CALLBACK(insecurecontent), c);
1080         g_signal_connect(G_OBJECT(v), "load-failed-with-tls-errors",
1081                          G_CALLBACK(loadfailedtls), c);
1082         g_signal_connect(G_OBJECT(v), "load-changed",
1083                          G_CALLBACK(loadchanged), c);
1084         g_signal_connect(G_OBJECT(v), "mouse-target-changed",
1085                          G_CALLBACK(mousetargetchanged), c);
1086         g_signal_connect(G_OBJECT(v), "permission-request",
1087                          G_CALLBACK(permissionrequested), c);
1088         g_signal_connect(G_OBJECT(v), "ready-to-show",
1089                          G_CALLBACK(showview), c);
1090
1091         return v;
1092 }
1093
1094 void
1095 initwebextensions(WebKitWebContext *wc, Client *c)
1096 {
1097         webkit_web_context_set_web_extensions_directory(wc, WEBEXTDIR);
1098 }
1099
1100 GtkWidget *
1101 createview(WebKitWebView *v, WebKitNavigationAction *a, Client *c)
1102 {
1103         Client *n;
1104
1105         switch (webkit_navigation_action_get_navigation_type(a)) {
1106         case WEBKIT_NAVIGATION_TYPE_OTHER: /* fallthrough */
1107                 /*
1108                  * popup windows of type “other” are almost always triggered
1109                  * by user gesture, so inverse the logic here
1110                  */
1111 /* instead of this, compare destination uri to mouse-over uri for validating window */
1112                 if (webkit_navigation_action_is_user_gesture(a))
1113                         return NULL;
1114         case WEBKIT_NAVIGATION_TYPE_LINK_CLICKED: /* fallthrough */
1115         case WEBKIT_NAVIGATION_TYPE_FORM_SUBMITTED: /* fallthrough */
1116         case WEBKIT_NAVIGATION_TYPE_BACK_FORWARD: /* fallthrough */
1117         case WEBKIT_NAVIGATION_TYPE_RELOAD: /* fallthrough */
1118         case WEBKIT_NAVIGATION_TYPE_FORM_RESUBMITTED:
1119                 n = newclient(c);
1120                 break;
1121         default:
1122                 return NULL;
1123         }
1124
1125         return GTK_WIDGET(n->view);
1126 }
1127
1128 gboolean
1129 buttonreleased(GtkWidget *w, GdkEvent *e, Client *c)
1130 {
1131         WebKitHitTestResultContext element;
1132         int i;
1133
1134         element = webkit_hit_test_result_get_context(c->mousepos);
1135
1136         for (i = 0; i < LENGTH(buttons); ++i) {
1137                 if (element & buttons[i].target &&
1138                     e->button.button == buttons[i].button &&
1139                     CLEANMASK(e->button.state) == CLEANMASK(buttons[i].mask) &&
1140                     buttons[i].func) {
1141                         buttons[i].func(c, &buttons[i].arg, c->mousepos);
1142                         return buttons[i].stopevent;
1143                 }
1144         }
1145
1146         return FALSE;
1147 }
1148
1149 GdkFilterReturn
1150 processx(GdkXEvent *e, GdkEvent *event, gpointer d)
1151 {
1152         Client *c = (Client *)d;
1153         XPropertyEvent *ev;
1154         Arg a;
1155
1156         if (((XEvent *)e)->type == PropertyNotify) {
1157                 ev = &((XEvent *)e)->xproperty;
1158                 if (ev->state == PropertyNewValue) {
1159                         if (ev->atom == atoms[AtomFind]) {
1160                                 find(c, NULL);
1161
1162                                 return GDK_FILTER_REMOVE;
1163                         } else if (ev->atom == atoms[AtomGo]) {
1164                                 a.v = getatom(c, AtomGo);
1165                                 loaduri(c, &a);
1166
1167                                 return GDK_FILTER_REMOVE;
1168                         }
1169                 }
1170         }
1171         return GDK_FILTER_CONTINUE;
1172 }
1173
1174 gboolean
1175 winevent(GtkWidget *w, GdkEvent *e, Client *c)
1176 {
1177         int i;
1178
1179         switch (e->type) {
1180         case GDK_ENTER_NOTIFY:
1181                 c->overtitle = c->targeturi;
1182                 updatetitle(c);
1183                 break;
1184         case GDK_KEY_PRESS:
1185                 if (!curconfig[KioskMode].val.b) {
1186                         for (i = 0; i < LENGTH(keys); ++i) {
1187                                 if (gdk_keyval_to_lower(e->key.keyval) ==
1188                                     keys[i].keyval &&
1189                                     CLEANMASK(e->key.state) == keys[i].mod &&
1190                                     keys[i].func) {
1191                                         updatewinid(c);
1192                                         keys[i].func(c, &(keys[i].arg));
1193                                         return TRUE;
1194                                 }
1195                         }
1196                 }
1197         case GDK_LEAVE_NOTIFY:
1198                 c->overtitle = NULL;
1199                 updatetitle(c);
1200                 break;
1201         case GDK_WINDOW_STATE:
1202                 if (e->window_state.changed_mask ==
1203                     GDK_WINDOW_STATE_FULLSCREEN)
1204                         c->fullscreen = e->window_state.new_window_state &
1205                                         GDK_WINDOW_STATE_FULLSCREEN;
1206                 break;
1207         default:
1208                 break;
1209         }
1210
1211         return FALSE;
1212 }
1213
1214 void
1215 showview(WebKitWebView *v, Client *c)
1216 {
1217         GdkRGBA bgcolor = { 0 };
1218         GdkWindow *gwin;
1219
1220         c->finder = webkit_web_view_get_find_controller(c->view);
1221         c->inspector = webkit_web_view_get_inspector(c->view);
1222
1223         c->win = createwindow(c);
1224
1225         gtk_container_add(GTK_CONTAINER(c->win), GTK_WIDGET(c->view));
1226         gtk_widget_show_all(c->win);
1227         gtk_widget_grab_focus(GTK_WIDGET(c->view));
1228
1229         gwin = gtk_widget_get_window(GTK_WIDGET(c->win));
1230         c->xid = gdk_x11_window_get_xid(gwin);
1231         updatewinid(c);
1232         if (showxid) {
1233                 gdk_display_sync(gtk_widget_get_display(c->win));
1234                 puts(winid);
1235         }
1236
1237         if (curconfig[HideBackground].val.b)
1238                 webkit_web_view_set_background_color(c->view, &bgcolor);
1239
1240         if (!curconfig[KioskMode].val.b) {
1241                 gdk_window_set_events(gwin, GDK_ALL_EVENTS_MASK);
1242                 gdk_window_add_filter(gwin, processx, c);
1243         }
1244
1245         if (curconfig[RunInFullscreen].val.b)
1246                 togglefullscreen(c, NULL);
1247
1248         if (curconfig[ZoomLevel].val.f != 1.0)
1249                 webkit_web_view_set_zoom_level(c->view,
1250                                                curconfig[ZoomLevel].val.f);
1251
1252         setatom(c, AtomFind, "");
1253         setatom(c, AtomUri, "about:blank");
1254 }
1255
1256 GtkWidget *
1257 createwindow(Client *c)
1258 {
1259         char *wmstr;
1260         GtkWidget *w;
1261
1262         if (embed) {
1263                 w = gtk_plug_new(embed);
1264         } else {
1265                 w = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1266
1267                 wmstr = g_path_get_basename(argv0);
1268                 gtk_window_set_wmclass(GTK_WINDOW(w), wmstr, "Surf");
1269                 g_free(wmstr);
1270
1271                 wmstr = g_strdup_printf("%s[%lu]", "Surf",
1272                         webkit_web_view_get_page_id(c->view));
1273                 gtk_window_set_role(GTK_WINDOW(w), wmstr);
1274                 g_free(wmstr);
1275
1276                 gtk_window_set_default_size(GTK_WINDOW(w), winsize[0], winsize[1]);
1277         }
1278
1279         g_signal_connect(G_OBJECT(w), "destroy",
1280                          G_CALLBACK(destroywin), c);
1281         g_signal_connect(G_OBJECT(w), "enter-notify-event",
1282                          G_CALLBACK(winevent), c);
1283         g_signal_connect(G_OBJECT(w), "key-press-event",
1284                          G_CALLBACK(winevent), c);
1285         g_signal_connect(G_OBJECT(w), "leave-notify-event",
1286                          G_CALLBACK(winevent), c);
1287         g_signal_connect(G_OBJECT(w), "window-state-event",
1288                          G_CALLBACK(winevent), c);
1289
1290         return w;
1291 }
1292
1293 gboolean
1294 loadfailedtls(WebKitWebView *v, gchar *uri, GTlsCertificate *cert,
1295               GTlsCertificateFlags err, Client *c)
1296 {
1297         GString *errmsg = g_string_new(NULL);
1298         gchar *html, *pem;
1299
1300         c->failedcert = g_object_ref(cert);
1301         c->tlserr = err;
1302         c->errorpage = 1;
1303
1304         if (err & G_TLS_CERTIFICATE_UNKNOWN_CA)
1305                 g_string_append(errmsg,
1306                     "The signing certificate authority is not known.<br>");
1307         if (err & G_TLS_CERTIFICATE_BAD_IDENTITY)
1308                 g_string_append(errmsg,
1309                     "The certificate does not match the expected identity "
1310                     "of the site that it was retrieved from.<br>");
1311         if (err & G_TLS_CERTIFICATE_NOT_ACTIVATED)
1312                 g_string_append(errmsg,
1313                     "The certificate's activation time "
1314                     "is still in the future.<br>");
1315         if (err & G_TLS_CERTIFICATE_EXPIRED)
1316                 g_string_append(errmsg, "The certificate has expired.<br>");
1317         if (err & G_TLS_CERTIFICATE_REVOKED)
1318                 g_string_append(errmsg,
1319                     "The certificate has been revoked according to "
1320                     "the GTlsConnection's certificate revocation list.<br>");
1321         if (err & G_TLS_CERTIFICATE_INSECURE)
1322                 g_string_append(errmsg,
1323                     "The certificate's algorithm is considered insecure.<br>");
1324         if (err & G_TLS_CERTIFICATE_GENERIC_ERROR)
1325                 g_string_append(errmsg,
1326                     "Some error occurred validating the certificate.<br>");
1327
1328         g_object_get(cert, "certificate-pem", &pem, NULL);
1329         html = g_strdup_printf("<p>Could not validate TLS for “%s”<br>%s</p>"
1330                                "<p>You can inspect the following certificate "
1331                                "with Ctrl+Shift+x (default keybinding).</p>"
1332                                "<p><pre>%s</pre></p>", uri, errmsg->str, pem);
1333         g_free(pem);
1334         g_string_free(errmsg, TRUE);
1335
1336         webkit_web_view_load_alternate_html(c->view, html, uri, NULL);
1337         g_free(html);
1338
1339         return TRUE;
1340 }
1341
1342 void
1343 loadchanged(WebKitWebView *v, WebKitLoadEvent e, Client *c)
1344 {
1345         const char *title = geturi(c);
1346
1347         switch (e) {
1348         case WEBKIT_LOAD_STARTED:
1349                 curconfig = defconfig;
1350                 setatom(c, AtomUri, title);
1351                 c->title = title;
1352                 c->https = c->insecure = 0;
1353                 seturiparameters(c, geturi(c));
1354                 if (c->errorpage)
1355                         c->errorpage = 0;
1356                 else
1357                         g_clear_object(&c->failedcert);
1358                 break;
1359         case WEBKIT_LOAD_REDIRECTED:
1360                 setatom(c, AtomUri, title);
1361                 c->title = title;
1362                 seturiparameters(c, geturi(c));
1363                 break;
1364         case WEBKIT_LOAD_COMMITTED:
1365                 c->https = webkit_web_view_get_tls_info(c->view, &c->cert,
1366                                                         &c->tlserr);
1367                 break;
1368         case WEBKIT_LOAD_FINISHED:
1369                 /* Disabled until we write some WebKitWebExtension for
1370                  * manipulating the DOM directly.
1371                 evalscript(c, "document.documentElement.style.overflow = '%s'",
1372                     enablescrollbars ? "auto" : "hidden");
1373                 */
1374                 runscript(c);
1375                 break;
1376         }
1377         updatetitle(c);
1378 }
1379
1380 void
1381 progresschanged(WebKitWebView *v, GParamSpec *ps, Client *c)
1382 {
1383         c->progress = webkit_web_view_get_estimated_load_progress(c->view) *
1384                       100;
1385         updatetitle(c);
1386 }
1387
1388 void
1389 titlechanged(WebKitWebView *view, GParamSpec *ps, Client *c)
1390 {
1391         c->title = webkit_web_view_get_title(c->view);
1392         updatetitle(c);
1393 }
1394
1395 void
1396 mousetargetchanged(WebKitWebView *v, WebKitHitTestResult *h, guint modifiers,
1397     Client *c)
1398 {
1399         WebKitHitTestResultContext hc = webkit_hit_test_result_get_context(h);
1400
1401         /* Keep the hit test to know where is the pointer on the next click */
1402         c->mousepos = h;
1403
1404         if (hc & OnLink)
1405                 c->targeturi = webkit_hit_test_result_get_link_uri(h);
1406         else if (hc & OnImg)
1407                 c->targeturi = webkit_hit_test_result_get_image_uri(h);
1408         else if (hc & OnMedia)
1409                 c->targeturi = webkit_hit_test_result_get_media_uri(h);
1410         else
1411                 c->targeturi = NULL;
1412
1413         c->overtitle = c->targeturi;
1414         updatetitle(c);
1415 }
1416
1417 gboolean
1418 permissionrequested(WebKitWebView *v, WebKitPermissionRequest *r, Client *c)
1419 {
1420         if (WEBKIT_IS_GEOLOCATION_PERMISSION_REQUEST(r)) {
1421                 if (curconfig[Geolocation].val.b)
1422                         webkit_permission_request_allow(r);
1423                 else
1424                         webkit_permission_request_deny(r);
1425                 return TRUE;
1426         }
1427
1428         return FALSE;
1429 }
1430
1431 gboolean
1432 decidepolicy(WebKitWebView *v, WebKitPolicyDecision *d,
1433     WebKitPolicyDecisionType dt, Client *c)
1434 {
1435         switch (dt) {
1436         case WEBKIT_POLICY_DECISION_TYPE_NAVIGATION_ACTION:
1437                 decidenavigation(d, c);
1438                 break;
1439         case WEBKIT_POLICY_DECISION_TYPE_NEW_WINDOW_ACTION:
1440                 decidenewwindow(d, c);
1441                 break;
1442         case WEBKIT_POLICY_DECISION_TYPE_RESPONSE:
1443                 decideresource(d, c);
1444                 break;
1445         default:
1446                 webkit_policy_decision_ignore(d);
1447                 break;
1448         }
1449         return TRUE;
1450 }
1451
1452 void
1453 decidenavigation(WebKitPolicyDecision *d, Client *c)
1454 {
1455         WebKitNavigationAction *a =
1456             webkit_navigation_policy_decision_get_navigation_action(
1457             WEBKIT_NAVIGATION_POLICY_DECISION(d));
1458
1459         switch (webkit_navigation_action_get_navigation_type(a)) {
1460         case WEBKIT_NAVIGATION_TYPE_LINK_CLICKED: /* fallthrough */
1461         case WEBKIT_NAVIGATION_TYPE_FORM_SUBMITTED: /* fallthrough */
1462         case WEBKIT_NAVIGATION_TYPE_BACK_FORWARD: /* fallthrough */
1463         case WEBKIT_NAVIGATION_TYPE_RELOAD: /* fallthrough */
1464         case WEBKIT_NAVIGATION_TYPE_FORM_RESUBMITTED: /* fallthrough */
1465         case WEBKIT_NAVIGATION_TYPE_OTHER: /* fallthrough */
1466         default:
1467                 /* Do not navigate to links with a "_blank" target (popup) */
1468                 if (webkit_navigation_policy_decision_get_frame_name(
1469                     WEBKIT_NAVIGATION_POLICY_DECISION(d))) {
1470                         webkit_policy_decision_ignore(d);
1471                 } else {
1472                         /* Filter out navigation to different domain ? */
1473                         /* get action→urirequest, copy and load in new window+view
1474                          * on Ctrl+Click ? */
1475                         webkit_policy_decision_use(d);
1476                 }
1477                 break;
1478         }
1479 }
1480
1481 void
1482 decidenewwindow(WebKitPolicyDecision *d, Client *c)
1483 {
1484         Arg arg;
1485         WebKitNavigationAction *a =
1486             webkit_navigation_policy_decision_get_navigation_action(
1487             WEBKIT_NAVIGATION_POLICY_DECISION(d));
1488
1489
1490         switch (webkit_navigation_action_get_navigation_type(a)) {
1491         case WEBKIT_NAVIGATION_TYPE_LINK_CLICKED: /* fallthrough */
1492         case WEBKIT_NAVIGATION_TYPE_FORM_SUBMITTED: /* fallthrough */
1493         case WEBKIT_NAVIGATION_TYPE_BACK_FORWARD: /* fallthrough */
1494         case WEBKIT_NAVIGATION_TYPE_RELOAD: /* fallthrough */
1495         case WEBKIT_NAVIGATION_TYPE_FORM_RESUBMITTED:
1496                 /* Filter domains here */
1497 /* If the value of “mouse-button” is not 0, then the navigation was triggered by a mouse event.
1498  * test for link clicked but no button ? */
1499                 arg.v = webkit_uri_request_get_uri(
1500                         webkit_navigation_action_get_request(a));
1501                 newwindow(c, &arg, 0);
1502                 break;
1503         case WEBKIT_NAVIGATION_TYPE_OTHER: /* fallthrough */
1504         default:
1505                 break;
1506         }
1507
1508         webkit_policy_decision_ignore(d);
1509 }
1510
1511 void
1512 decideresource(WebKitPolicyDecision *d, Client *c)
1513 {
1514         int i, isascii = 1;
1515         WebKitResponsePolicyDecision *r = WEBKIT_RESPONSE_POLICY_DECISION(d);
1516         WebKitURIResponse *res =
1517             webkit_response_policy_decision_get_response(r);
1518         const gchar *uri = webkit_uri_response_get_uri(res);
1519
1520         if (g_str_has_suffix(uri, "/favicon.ico")) {
1521                 webkit_policy_decision_ignore(d);
1522                 return;
1523         }
1524
1525         if (!g_str_has_prefix(uri, "http://")
1526             && !g_str_has_prefix(uri, "https://")
1527             && !g_str_has_prefix(uri, "about:")
1528             && !g_str_has_prefix(uri, "file://")
1529             && !g_str_has_prefix(uri, "data:")
1530             && !g_str_has_prefix(uri, "blob:")
1531             && strlen(uri) > 0) {
1532                 for (i = 0; i < strlen(uri); i++) {
1533                         if (!g_ascii_isprint(uri[i])) {
1534                                 isascii = 0;
1535                                 break;
1536                         }
1537                 }
1538                 if (isascii) {
1539                         handleplumb(c, uri);
1540                         webkit_policy_decision_ignore(d);
1541                         return;
1542                 }
1543         }
1544
1545         if (webkit_response_policy_decision_is_mime_type_supported(r)) {
1546                 webkit_policy_decision_use(d);
1547         } else {
1548                 webkit_policy_decision_ignore(d);
1549                 download(c, res);
1550         }
1551 }
1552
1553 void
1554 insecurecontent(WebKitWebView *v, WebKitInsecureContentEvent e, Client *c)
1555 {
1556         c->insecure = 1;
1557 }
1558
1559 void
1560 downloadstarted(WebKitWebContext *wc, WebKitDownload *d, Client *c)
1561 {
1562         g_signal_connect(G_OBJECT(d), "notify::response",
1563                          G_CALLBACK(responsereceived), c);
1564 }
1565
1566 void
1567 responsereceived(WebKitDownload *d, GParamSpec *ps, Client *c)
1568 {
1569         download(c, webkit_download_get_response(d));
1570         webkit_download_cancel(d);
1571 }
1572
1573 void
1574 download(Client *c, WebKitURIResponse *r)
1575 {
1576         Arg a = (Arg)DOWNLOAD(webkit_uri_response_get_uri(r), geturi(c));
1577         spawn(c, &a);
1578 }
1579
1580 void
1581 closeview(WebKitWebView *v, Client *c)
1582 {
1583         gtk_widget_destroy(c->win);
1584 }
1585
1586 void
1587 destroywin(GtkWidget* w, Client *c)
1588 {
1589         destroyclient(c);
1590         if (!clients)
1591                 gtk_main_quit();
1592 }
1593
1594 void
1595 pasteuri(GtkClipboard *clipboard, const char *text, gpointer d)
1596 {
1597         Arg a = {.v = text };
1598         if (text)
1599                 loaduri((Client *) d, &a);
1600 }
1601
1602 void
1603 reload(Client *c, const Arg *a)
1604 {
1605         if (a->b)
1606                 webkit_web_view_reload_bypass_cache(c->view);
1607         else
1608                 webkit_web_view_reload(c->view);
1609 }
1610
1611 void
1612 print(Client *c, const Arg *a)
1613 {
1614         webkit_print_operation_run_dialog(webkit_print_operation_new(c->view),
1615                                           GTK_WINDOW(c->win));
1616 }
1617
1618 void
1619 showcert(Client *c, const Arg *a)
1620 {
1621         GTlsCertificate *cert = c->failedcert ? c->failedcert : c->cert;
1622         GcrCertificate *gcrt;
1623         GByteArray *crt;
1624         GtkWidget *win;
1625         GcrCertificateWidget *wcert;
1626
1627         if (!cert)
1628                 return;
1629
1630         g_object_get(cert, "certificate", &crt, NULL);
1631         gcrt = gcr_simple_certificate_new(crt->data, crt->len);
1632         g_byte_array_unref(crt);
1633
1634         win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1635         wcert = gcr_certificate_widget_new(gcrt);
1636         g_object_unref(gcrt);
1637
1638         gtk_container_add(GTK_CONTAINER(win), GTK_WIDGET(wcert));
1639         gtk_widget_show_all(win);
1640 }
1641
1642 void
1643 clipboard(Client *c, const Arg *a)
1644 {
1645         if (a->b) { /* load clipboard uri */
1646                 gtk_clipboard_request_text(gtk_clipboard_get(
1647                                            GDK_SELECTION_PRIMARY),
1648                                            pasteuri, c);
1649         } else { /* copy uri */
1650                 gtk_clipboard_set_text(gtk_clipboard_get(
1651                                        GDK_SELECTION_PRIMARY), c->targeturi
1652                                        ? c->targeturi : geturi(c), -1);
1653         }
1654 }
1655
1656 void
1657 zoom(Client *c, const Arg *a)
1658 {
1659         if (a->i > 0)
1660                 webkit_web_view_set_zoom_level(c->view,
1661                                                curconfig[ZoomLevel].val.f + 0.1);
1662         else if (a->i < 0)
1663                 webkit_web_view_set_zoom_level(c->view,
1664                                                curconfig[ZoomLevel].val.f - 0.1);
1665         else
1666                 webkit_web_view_set_zoom_level(c->view, 1.0);
1667
1668         curconfig[ZoomLevel].val.f = webkit_web_view_get_zoom_level(c->view);
1669 }
1670
1671 void
1672 scroll(Client *c, const Arg *a)
1673 {
1674         GdkEvent *ev = gdk_event_new(GDK_KEY_PRESS);
1675
1676         gdk_event_set_device(ev, gdkkb);
1677         ev->key.window = gtk_widget_get_window(GTK_WIDGET(c->win));
1678         ev->key.state = GDK_CONTROL_MASK;
1679         ev->key.time = GDK_CURRENT_TIME;
1680
1681         switch (a->i) {
1682         case 'd':
1683                 ev->key.keyval = GDK_KEY_Down;
1684                 break;
1685         case 'D':
1686                 ev->key.keyval = GDK_KEY_Page_Down;
1687                 break;
1688         case 'l':
1689                 ev->key.keyval = GDK_KEY_Left;
1690                 break;
1691         case 'r':
1692                 ev->key.keyval = GDK_KEY_Right;
1693                 break;
1694         case 'U':
1695                 ev->key.keyval = GDK_KEY_Page_Up;
1696                 break;
1697         case 'u':
1698                 ev->key.keyval = GDK_KEY_Up;
1699                 break;
1700         }
1701
1702         gdk_event_put(ev);
1703 }
1704
1705 void
1706 navigate(Client *c, const Arg *a)
1707 {
1708         if (a->i < 0)
1709                 webkit_web_view_go_back(c->view);
1710         else if (a->i > 0)
1711                 webkit_web_view_go_forward(c->view);
1712 }
1713
1714 void
1715 stop(Client *c, const Arg *a)
1716 {
1717         webkit_web_view_stop_loading(c->view);
1718 }
1719
1720 void
1721 toggle(Client *c, const Arg *a)
1722 {
1723         curconfig[a->i].val.b ^= 1;
1724         setparameter(c, 1, (ParamName)a->i, &curconfig[a->i].val);
1725 }
1726
1727 void
1728 togglefullscreen(Client *c, const Arg *a)
1729 {
1730         /* toggling value is handled in winevent() */
1731         if (c->fullscreen)
1732                 gtk_window_unfullscreen(GTK_WINDOW(c->win));
1733         else
1734                 gtk_window_fullscreen(GTK_WINDOW(c->win));
1735 }
1736
1737 void
1738 togglecookiepolicy(Client *c, const Arg *a)
1739 {
1740         ++cookiepolicy;
1741         cookiepolicy %= strlen(curconfig[CookiePolicies].val.v);
1742
1743         setparameter(c, 0, CookiePolicies, NULL);
1744 }
1745
1746 void
1747 toggleinspector(Client *c, const Arg *a)
1748 {
1749         if (webkit_web_inspector_is_attached(c->inspector))
1750                 webkit_web_inspector_close(c->inspector);
1751         else if (curconfig[Inspector].val.b)
1752                 webkit_web_inspector_show(c->inspector);
1753 }
1754
1755 void
1756 find(Client *c, const Arg *a)
1757 {
1758         const char *s, *f;
1759
1760         if (a && a->i) {
1761                 if (a->i > 0)
1762                         webkit_find_controller_search_next(c->finder);
1763                 else
1764                         webkit_find_controller_search_previous(c->finder);
1765         } else {
1766                 s = getatom(c, AtomFind);
1767                 f = webkit_find_controller_get_search_text(c->finder);
1768
1769                 if (g_strcmp0(f, s) == 0) /* reset search */
1770                         webkit_find_controller_search(c->finder, "", findopts,
1771                                                       G_MAXUINT);
1772
1773                 webkit_find_controller_search(c->finder, s, findopts,
1774                                               G_MAXUINT);
1775
1776                 if (strcmp(s, "") == 0)
1777                         webkit_find_controller_search_finish(c->finder);
1778         }
1779 }
1780
1781 void
1782 clicknavigate(Client *c, const Arg *a, WebKitHitTestResult *h)
1783 {
1784         navigate(c, a);
1785 }
1786
1787 void
1788 clicknewwindow(Client *c, const Arg *a, WebKitHitTestResult *h)
1789 {
1790         Arg arg;
1791
1792         arg.v = webkit_hit_test_result_get_link_uri(h);
1793         newwindow(c, &arg, a->b);
1794 }
1795
1796 void
1797 clickexternplayer(Client *c, const Arg *a, WebKitHitTestResult *h)
1798 {
1799         Arg arg;
1800
1801         arg = (Arg)VIDEOPLAY(webkit_hit_test_result_get_media_uri(h));
1802         spawn(c, &arg);
1803 }
1804
1805 int
1806 main(int argc, char *argv[])
1807 {
1808         Arg arg;
1809         Client *c;
1810
1811         memset(&arg, 0, sizeof(arg));
1812
1813         /* command line args */
1814         ARGBEGIN {
1815         case 'a':
1816                 defconfig CSETV(CookiePolicies, EARGF(usage()));
1817                 break;
1818         case 'b':
1819                 defconfig CSETB(ScrollBars, 0);
1820                 break;
1821         case 'B':
1822                 defconfig CSETB(ScrollBars, 1);
1823                 break;
1824         case 'c':
1825                 cookiefile = EARGF(usage());
1826                 break;
1827         case 'C':
1828                 stylefile = EARGF(usage());
1829                 break;
1830         case 'd':
1831                 defconfig CSETB(DiskCache, 0);
1832                 break;
1833         case 'D':
1834                 defconfig CSETB(DiskCache, 1);
1835                 break;
1836         case 'e':
1837                 embed = strtol(EARGF(usage()), NULL, 0);
1838                 break;
1839         case 'f':
1840                 defconfig CSETB(RunInFullscreen, 0);
1841                 break;
1842         case 'F':
1843                 defconfig CSETB(RunInFullscreen, 1);
1844                 break;
1845         case 'g':
1846                 defconfig CSETB(Geolocation, 0);
1847                 break;
1848         case 'G':
1849                 defconfig CSETB(Geolocation, 1);
1850                 break;
1851         case 'i':
1852                 defconfig CSETB(LoadImages, 0);
1853                 break;
1854         case 'I':
1855                 defconfig CSETB(LoadImages, 1);
1856                 break;
1857         case 'k':
1858                 defconfig CSETB(KioskMode, 0);
1859                 break;
1860         case 'K':
1861                 defconfig CSETB(KioskMode, 1);
1862                 break;
1863         case 'm':
1864                 defconfig CSETB(Style, 0);
1865                 break;
1866         case 'M':
1867                 defconfig CSETB(Style, 1);
1868                 break;
1869         case 'n':
1870                 defconfig CSETB(Inspector, 0);
1871                 break;
1872         case 'N':
1873                 defconfig CSETB(Inspector, 1);
1874                 break;
1875         case 'p':
1876                 defconfig CSETB(Plugins, 0);
1877                 break;
1878         case 'P':
1879                 defconfig CSETB(Plugins, 1);
1880                 break;
1881         case 'r':
1882                 scriptfile = EARGF(usage());
1883                 break;
1884         case 's':
1885                 defconfig CSETB(JavaScript, 0);
1886                 break;
1887         case 'S':
1888                 defconfig CSETB(JavaScript, 1);
1889                 break;
1890         case 't':
1891                 defconfig CSETB(StrictTLS, 0);
1892                 break;
1893         case 'T':
1894                 defconfig CSETB(StrictTLS, 1);
1895                 break;
1896         case 'u':
1897                 fulluseragent = EARGF(usage());
1898                 break;
1899         case 'v':
1900                 die("surf-"VERSION", ©2009-2017 surf engineers, "
1901                     "see LICENSE for details\n");
1902         case 'w':
1903                 showxid = 1;
1904                 break;
1905         case 'z':
1906                 defconfig CSETF(ZoomLevel, strtof(EARGF(usage()), NULL));
1907                 break;
1908         default:
1909                 usage();
1910         } ARGEND;
1911         if (argc > 0)
1912                 arg.v = argv[0];
1913         else
1914                 arg.v = "about:blank";
1915
1916         setup();
1917         c = newclient(NULL);
1918         showview(NULL, c);
1919
1920         loaduri(c, &arg);
1921         updatetitle(c);
1922
1923         gtk_main();
1924         cleanup();
1925
1926         return 0;
1927 }