Communicate through a Unix socket instead of a pipe pair
This commit is contained in:
Quentin Rameau
parent
f61cfc720c
commit
e92fd1aa5f
2 changed files with 65 additions and 57 deletions
62
surf.c
62
surf.c
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@ -3,6 +3,7 @@
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* To understand surf, start reading main().
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*/
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#include <sys/file.h>
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#include <sys/socket.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <glib.h>
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@ -187,7 +188,7 @@ static gboolean buttonreleased(GtkWidget *w, GdkEvent *e, Client *c);
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static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event,
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gpointer d);
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static gboolean winevent(GtkWidget *w, GdkEvent *e, Client *c);
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static gboolean readpipe(GIOChannel *s, GIOCondition ioc, gpointer unused);
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static gboolean readsock(GIOChannel *s, GIOCondition ioc, gpointer unused);
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static void showview(WebKitWebView *v, Client *c);
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static GtkWidget *createwindow(Client *c);
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static gboolean loadfailedtls(WebKitWebView *v, gchar *uri,
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@ -253,7 +254,7 @@ static char *stylefile;
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static const char *useragent;
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static Parameter *curconfig;
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static int modparams[ParameterLast];
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static int pipein[2], pipeout[2];
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static int spair[2];
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char *argv0;
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static ParamName loadtransient[] = {
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@ -359,13 +360,15 @@ setup(void)
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gdkkb = gdk_seat_get_keyboard(gdk_display_get_default_seat(gdpy));
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if (pipe(pipeout) < 0 || pipe(pipein) < 0) {
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fputs("Unable to create pipes\n", stderr);
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if (socketpair(AF_UNIX, SOCK_DGRAM, 0, spair) < 0) {
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fputs("Unable to create sockets\n", stderr);
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spair[0] = spair[1] = -1;
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} else {
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gchanin = g_io_channel_unix_new(pipein[0]);
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gchanin = g_io_channel_unix_new(spair[0]);
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g_io_channel_set_encoding(gchanin, NULL, NULL);
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g_io_channel_set_flags(gchanin, G_IO_FLAG_NONBLOCK, NULL);
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g_io_channel_set_close_on_unref(gchanin, TRUE);
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g_io_add_watch(gchanin, G_IO_IN, readpipe, NULL);
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g_io_add_watch(gchanin, G_IO_IN, readsock, NULL);
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}
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@ -1054,8 +1057,8 @@ spawn(Client *c, const Arg *a)
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if (fork() == 0) {
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if (dpy)
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close(ConnectionNumber(dpy));
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close(pipein[0]);
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close(pipeout[1]);
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close(spair[0]);
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close(spair[1]);
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setsid();
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execvp(((char **)a->v)[0], (char **)a->v);
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fprintf(stderr, "%s: execvp %s", argv0, ((char **)a->v)[0]);
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@ -1089,8 +1092,8 @@ cleanup(void)
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while (clients)
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destroyclient(clients);
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close(pipein[0]);
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close(pipeout[1]);
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close(spair[0]);
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close(spair[1]);
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g_free(cookiefile);
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g_free(scriptfile);
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g_free(stylefile);
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@ -1233,30 +1236,26 @@ newview(Client *c, WebKitWebView *rv)
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}
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static gboolean
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readpipe(GIOChannel *s, GIOCondition ioc, gpointer unused)
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readsock(GIOChannel *s, GIOCondition ioc, gpointer unused)
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{
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static char msg[MSGBUFSZ], msgsz;
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static char msg[MSGBUFSZ];
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GError *gerr = NULL;
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gsize msgsz;
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if (g_io_channel_read_chars(s, msg, sizeof(msg), NULL, &gerr) !=
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if (g_io_channel_read_chars(s, msg, sizeof(msg), &msgsz, &gerr) !=
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G_IO_STATUS_NORMAL) {
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fprintf(stderr, "surf: error reading pipe: %s\n",
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gerr->message);
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g_error_free(gerr);
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if (gerr) {
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fprintf(stderr, "surf: error reading socket: %s\n",
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gerr->message);
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g_error_free(gerr);
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}
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return TRUE;
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}
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if ((msgsz = msg[0]) < 3) {
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if (msgsz < 2) {
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fprintf(stderr, "surf: message too short: %d\n", msgsz);
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return TRUE;
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}
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switch (msg[2]) {
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case 'i':
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close(pipein[1]);
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close(pipeout[0]);
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break;
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}
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return TRUE;
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}
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@ -1265,10 +1264,10 @@ initwebextensions(WebKitWebContext *wc, Client *c)
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{
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GVariant *gv;
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if (!pipeout[0] || !pipein[1])
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if (spair[1] < 0)
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return;
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gv = g_variant_new("(ii)", pipeout[0], pipein[1]);
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gv = g_variant_new("i", spair[1]);
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webkit_web_context_set_web_extensions_initialization_user_data(wc, gv);
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webkit_web_context_set_web_extensions_directory(wc, WEBEXTDIR);
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@ -1874,15 +1873,18 @@ msgext(Client *c, char type, const Arg *a)
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static char msg[MSGBUFSZ];
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int ret;
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if ((ret = snprintf(msg, sizeof(msg), "%c%c%c%c",
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4, c->pageid, type, a->i))
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if (spair[0] < 0)
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return;
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if ((ret = snprintf(msg, sizeof(msg), "%c%c%c", c->pageid, type, a->i))
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>= sizeof(msg)) {
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fprintf(stderr, "surf: message too long: %d\n", ret);
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return;
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}
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if (pipeout[1] && write(pipeout[1], msg, sizeof(msg)) < 0)
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fprintf(stderr, "surf: error sending: %.*s\n", ret-2, msg+2);
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if (send(spair[0], msg, ret, 0) != ret)
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fprintf(stderr, "surf: error sending: %d%c%d (%dB)\n",
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c->pageid, type, a->i, ret);
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}
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void
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@ -1,6 +1,8 @@
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <gio/gio.h>
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@ -18,7 +20,7 @@ typedef struct Page {
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struct Page *next;
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} Page;
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static int pipein, pipeout;
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static int sock;
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static Page *pages;
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Page *
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@ -47,60 +49,64 @@ msgsurf(Page *p, const char *s)
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size_t sln = strlen(s);
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int ret;
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if ((ret = snprintf(msg, sizeof(msg), "%c%c%s",
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2 + sln, p ? p->id : 0, s))
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if ((ret = snprintf(msg, sizeof(msg), "%c%s", p ? p->id : 0, s))
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>= sizeof(msg)) {
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fprintf(stderr, "webext: message too long: %d\n", ret);
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fprintf(stderr, "webext: msg: message too long: %d\n", ret);
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return;
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}
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if (pipeout && write(pipeout, msg, sizeof(msg)) < 0)
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fprintf(stderr, "webext: error sending: %.*s\n", ret-2, msg+2);
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if (send(sock, msg, ret, 0) < 0)
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fprintf(stderr, "webext: error sending: %s\n", msg+1);
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}
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static gboolean
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readpipe(GIOChannel *s, GIOCondition c, gpointer unused)
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readsock(GIOChannel *s, GIOCondition c, gpointer unused)
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{
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static char msg[MSGBUFSZ], msgsz;
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static char msg[MSGBUFSZ];
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WebKitDOMDOMWindow *view;
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GError *gerr = NULL;
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gsize msgsz;
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glong wh, ww;
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Page *p;
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if (g_io_channel_read_chars(s, msg, LENGTH(msg), NULL, &gerr) !=
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if (g_io_channel_read_chars(s, msg, LENGTH(msg), &msgsz, &gerr) !=
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G_IO_STATUS_NORMAL) {
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fprintf(stderr, "webext: error reading pipe: %s\n",
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gerr->message);
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g_error_free(gerr);
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if (gerr) {
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fprintf(stderr, "webext: error reading socket: %s\n",
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gerr->message);
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g_error_free(gerr);
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}
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return TRUE;
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}
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if ((msgsz = msg[0]) < 3) {
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fprintf(stderr, "webext: message too short: %d\n", msgsz);
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if (msgsz < 2) {
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fprintf(stderr, "webext: readsock: message too short: %d\n",
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msgsz);
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return TRUE;
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}
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for (p = pages; p; p = p->next) {
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if (p->id == msg[1])
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if (p->id == msg[0])
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break;
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}
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if (!p || !(view = webkit_dom_document_get_default_view(
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webkit_web_page_get_dom_document(p->webpage))))
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return TRUE;
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switch (msg[2]) {
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switch (msg[1]) {
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case 'h':
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if (msgsz != 4)
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if (msgsz != 3)
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return TRUE;
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ww = webkit_dom_dom_window_get_inner_width(view);
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webkit_dom_dom_window_scroll_by(view,
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(ww / 100) * msg[3], 0);
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(ww / 100) * msg[2], 0);
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break;
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case 'v':
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if (msgsz != 4)
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if (msgsz != 3)
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return TRUE;
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wh = webkit_dom_dom_window_get_inner_height(view);
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webkit_dom_dom_window_scroll_by(view,
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0, (wh / 100) * msg[3]);
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0, (wh / 100) * msg[2]);
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break;
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}
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@ -116,15 +122,15 @@ webpagecreated(WebKitWebExtension *e, WebKitWebPage *wp, gpointer unused)
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G_MODULE_EXPORT void
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webkit_web_extension_initialize_with_user_data(WebKitWebExtension *e, GVariant *gv)
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{
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GIOChannel *gchanpipe;
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GIOChannel *gchansock;
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g_signal_connect(e, "page-created", G_CALLBACK(webpagecreated), NULL);
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g_variant_get(gv, "(ii)", &pipein, &pipeout);
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msgsurf(NULL, "i");
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g_variant_get(gv, "i", &sock);
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gchanpipe = g_io_channel_unix_new(pipein);
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g_io_channel_set_encoding(gchanpipe, NULL, NULL);
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g_io_channel_set_close_on_unref(gchanpipe, TRUE);
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g_io_add_watch(gchanpipe, G_IO_IN, readpipe, NULL);
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gchansock = g_io_channel_unix_new(sock);
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g_io_channel_set_encoding(gchansock, NULL, NULL);
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g_io_channel_set_flags(gchansock, G_IO_FLAG_NONBLOCK, NULL);
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g_io_channel_set_close_on_unref(gchansock, TRUE);
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g_io_add_watch(gchansock, G_IO_IN, readsock, NULL);
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}
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