midori/extensions/dnsprefetch.c

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/*
Copyright (C) 2009 Alexander Butenko <a.butenka@gmail.com>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
*/
#include <midori/midori.h>
#include "config.h"
#include <glib/gstdio.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#define MAXHOSTS 50
static gchar* hosts = NULL;
static int host_count;
static void
dnsprefetch_do_prefetch (WebKitWebView *web_view,
gchar *title,
gchar *uri,
gpointer user_data)
{
SoupURI* s_uri;
/* FIXME: Ignore IP addresses */
if (!(uri && g_str_has_prefix (uri, "http")))
return;
s_uri = soup_uri_new (uri);
if (!g_regex_match_simple (s_uri->host, hosts,
G_REGEX_CASELESS, G_REGEX_MATCH_NOTEMPTY))
{
SoupAddress* address;
gchar* new_hosts;
address = soup_address_new (s_uri->host, SOUP_ADDRESS_ANY_PORT);
soup_address_resolve_async (address, 0, 0, 0, 0);
g_object_unref (address);
if (host_count > MAXHOSTS)
{
katze_assign (hosts, g_strdup (""));
host_count = 0;
}
host_count++;
new_hosts = g_strdup_printf ("%s|%s", hosts, s_uri->host);
katze_assign (hosts, new_hosts);
}
soup_uri_free (s_uri);
}
static void
dnsprefetch_add_tab_cb (MidoriBrowser* browser,
MidoriView* view)
{
GtkWidget* web_view = gtk_bin_get_child (GTK_BIN (view));
g_signal_connect (web_view, "hovering-over-link",
G_CALLBACK (dnsprefetch_do_prefetch), 0);
}
static void
dnsprefetch_deactivate_cb (MidoriExtension* extension,
MidoriBrowser* browser);
static void
dnsprefetch_add_tab_foreach_cb (MidoriView* view,
MidoriBrowser* browser)
{
dnsprefetch_add_tab_cb (browser, view);
}
static void
dnsprefetch_app_add_browser_cb (MidoriApp* app,
MidoriBrowser* browser,
MidoriExtension* extension)
{
midori_browser_foreach (browser,
(GtkCallback)dnsprefetch_add_tab_foreach_cb, browser);
g_signal_connect (browser, "add-tab",
G_CALLBACK (dnsprefetch_add_tab_cb), 0);
g_signal_connect (extension, "deactivate",
G_CALLBACK (dnsprefetch_deactivate_cb), browser);
}
static void
dnsprefetch_deactivate_tabs (MidoriView* view,
MidoriBrowser* browser)
{
GtkWidget* web_view = gtk_bin_get_child (GTK_BIN (view));
g_signal_handlers_disconnect_by_func (
browser, dnsprefetch_add_tab_cb, 0);
g_signal_handlers_disconnect_by_func (
web_view, dnsprefetch_do_prefetch, 0);
}
static void
dnsprefetch_deactivate_cb (MidoriExtension* extension,
MidoriBrowser* browser)
{
MidoriApp* app = midori_extension_get_app (extension);
katze_assign (hosts, g_strdup (""));
host_count = 0;
g_signal_handlers_disconnect_by_func (
extension, dnsprefetch_deactivate_cb, browser);
g_signal_handlers_disconnect_by_func (
app, dnsprefetch_app_add_browser_cb, extension);
midori_browser_foreach (browser, (GtkCallback)dnsprefetch_deactivate_tabs, browser);
}
static void
dnsprefetch_activate_cb (MidoriExtension* extension,
MidoriApp* app)
{
KatzeArray* browsers;
MidoriBrowser* browser;
guint i;
host_count = 0;
browsers = katze_object_get_object (app, "browsers");
i = 0;
while ((browser = katze_array_get_nth_item (browsers, i++)))
dnsprefetch_app_add_browser_cb (app, browser, extension);
g_signal_connect (app, "add-browser",
G_CALLBACK (dnsprefetch_app_add_browser_cb), extension);
g_object_unref (browsers);
}
MidoriExtension*
extension_init (void)
{
MidoriExtension* extension = g_object_new (MIDORI_TYPE_EXTENSION,
"name", _("DNS prefetching"),
"description", _("Prefetch IP addresses of hovered links"),
"version", "0.1",
"authors", "Alexander V. Butenko <a.butenka@gmail.com>",
NULL);
g_signal_connect (extension, "activate",
G_CALLBACK (dnsprefetch_activate_cb), NULL);
return extension;
}