~ubuntu-branches/ubuntu/maverick/empathy/maverick

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * Copyright (C) 2003-2007 Imendio AB
 * Copyright (C) 2007-2008 Collabora Ltd.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, write to the
 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
 * Boston, MA  02110-1301  USA
 *
 * Authors: Richard Hult <richard@imendio.com>
 *          Martyn Russell <martyn@imendio.com>
 *          Xavier Claessens <xclaesse@gmail.com>
 */

#include "config.h"

#include <string.h>
#include <time.h>
#include <sys/types.h>

#include <glib/gi18n-lib.h>

#include <libxml/uri.h>
#include <telepathy-glib/connection.h>
#include <telepathy-glib/channel.h>
#include <telepathy-glib/dbus.h>
#include <telepathy-glib/util.h>

#include "empathy-utils.h"
#include "empathy-contact-manager.h"
#include "empathy-dispatcher.h"
#include "empathy-dispatch-operation.h"
#include "empathy-idle.h"
#include "empathy-tp-call.h"

#include <extensions/extensions.h>

#define DEBUG_FLAG EMPATHY_DEBUG_OTHER
#include "empathy-debug.h"

/* Translation between presence types and string */
static struct {
	gchar *name;
	TpConnectionPresenceType type;
} presence_types[] = {
	{ "available", TP_CONNECTION_PRESENCE_TYPE_AVAILABLE },
	{ "busy",      TP_CONNECTION_PRESENCE_TYPE_BUSY },
	{ "away",      TP_CONNECTION_PRESENCE_TYPE_AWAY },
	{ "ext_away",  TP_CONNECTION_PRESENCE_TYPE_EXTENDED_AWAY },
	{ "hidden",    TP_CONNECTION_PRESENCE_TYPE_HIDDEN },
	{ "offline",   TP_CONNECTION_PRESENCE_TYPE_OFFLINE },
	{ "unset",     TP_CONNECTION_PRESENCE_TYPE_UNSET },
	{ "unknown",   TP_CONNECTION_PRESENCE_TYPE_UNKNOWN },
	{ "error",     TP_CONNECTION_PRESENCE_TYPE_ERROR },
	/* alternative names */
	{ "dnd",      TP_CONNECTION_PRESENCE_TYPE_BUSY },
	{ "brb",      TP_CONNECTION_PRESENCE_TYPE_AWAY },
	{ "xa",       TP_CONNECTION_PRESENCE_TYPE_EXTENDED_AWAY },
	{ NULL, },
};



void
empathy_init (void)
{
	static gboolean initialized = FALSE;

	if (initialized)
		return;

	g_type_init ();

	/* Setup gettext */
	bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
	bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");

	/* Setup debug output for empathy and telepathy-glib */
	if (g_getenv ("EMPATHY_TIMING") != NULL) {
		g_log_set_default_handler (tp_debug_timestamped_log_handler, NULL);
	}
	empathy_debug_set_flags (g_getenv ("EMPATHY_DEBUG"));
	tp_debug_divert_messages (g_getenv ("EMPATHY_LOGFILE"));

	emp_cli_init ();

	initialized = TRUE;
}

gchar *
empathy_substring (const gchar *str,
		  gint         start,
		  gint         end)
{
	return g_strndup (str + start, end - start);
}

gint
empathy_strcasecmp (const gchar *s1,
		   const gchar *s2)
{
	return empathy_strncasecmp (s1, s2, -1);
}

gint
empathy_strncasecmp (const gchar *s1,
		    const gchar *s2,
		    gsize        n)
{
	gchar *u1, *u2;
	gint   ret_val;

	u1 = g_utf8_casefold (s1, n);
	u2 = g_utf8_casefold (s2, n);

	ret_val = g_utf8_collate (u1, u2);
	g_free (u1);
	g_free (u2);

	return ret_val;
}

gboolean
empathy_xml_validate (xmlDoc      *doc,
		     const gchar *dtd_filename)
{
	gchar        *path, *escaped;
	xmlValidCtxt  cvp;
	xmlDtd       *dtd;
	gboolean      ret;

	path = g_build_filename (g_getenv ("EMPATHY_SRCDIR"), "libempathy",
				 dtd_filename, NULL);
	if (!g_file_test (path, G_FILE_TEST_EXISTS)) {
		g_free (path);
		path = g_build_filename (DATADIR, "empathy", dtd_filename, NULL);
	}
	DEBUG ("Loading dtd file %s", path);

	/* The list of valid chars is taken from libxml. */
	escaped = xmlURIEscapeStr (path, ":@&=+$,/?;");
	g_free (path);

	memset (&cvp, 0, sizeof (cvp));
	dtd = xmlParseDTD (NULL, escaped);
	ret = xmlValidateDtd (&cvp, doc, dtd);

	xmlFree (escaped);
	xmlFreeDtd (dtd);

	return ret;
}

xmlNodePtr
empathy_xml_node_get_child (xmlNodePtr   node,
			   const gchar *child_name)
{
	xmlNodePtr l;

        g_return_val_if_fail (node != NULL, NULL);
        g_return_val_if_fail (child_name != NULL, NULL);

	for (l = node->children; l; l = l->next) {
		if (l->name && strcmp (l->name, child_name) == 0) {
			return l;
		}
	}

	return NULL;
}

xmlChar *
empathy_xml_node_get_child_content (xmlNodePtr   node,
				   const gchar *child_name)
{
	xmlNodePtr l;

        g_return_val_if_fail (node != NULL, NULL);
        g_return_val_if_fail (child_name != NULL, NULL);

	l = empathy_xml_node_get_child (node, child_name);
	if (l) {
		return xmlNodeGetContent (l);
	}

	return NULL;
}

xmlNodePtr
empathy_xml_node_find_child_prop_value (xmlNodePtr   node,
				       const gchar *prop_name,
				       const gchar *prop_value)
{
	xmlNodePtr l;
	xmlNodePtr found = NULL;

        g_return_val_if_fail (node != NULL, NULL);
        g_return_val_if_fail (prop_name != NULL, NULL);
        g_return_val_if_fail (prop_value != NULL, NULL);

	for (l = node->children; l && !found; l = l->next) {
		xmlChar *prop;

		if (!xmlHasProp (l, prop_name)) {
			continue;
		}

		prop = xmlGetProp (l, prop_name);
		if (prop && strcmp (prop, prop_value) == 0) {
			found = l;
		}

		xmlFree (prop);
	}

	return found;
}

guint
empathy_account_hash (gconstpointer key)
{
	g_return_val_if_fail (EMPATHY_IS_ACCOUNT (key), 0);

	return g_str_hash (empathy_account_get_unique_name (EMPATHY_ACCOUNT (key)));
}

gboolean
empathy_account_equal (gconstpointer a,
		       gconstpointer b)
{
  return a == b;
}

MissionControl *
empathy_mission_control_dup_singleton (void)
{
	static MissionControl *mc = NULL;

	if (!mc) {
		mc = mission_control_new (tp_get_bus ());
		g_object_add_weak_pointer (G_OBJECT (mc), (gpointer) &mc);
	} else {
		g_object_ref (mc);
	}

	return mc;
}

const gchar *
empathy_presence_get_default_message (TpConnectionPresenceType presence)
{
	switch (presence) {
	case TP_CONNECTION_PRESENCE_TYPE_AVAILABLE:
		return _("Available");
	case TP_CONNECTION_PRESENCE_TYPE_BUSY:
		return _("Busy");
	case TP_CONNECTION_PRESENCE_TYPE_AWAY:
	case TP_CONNECTION_PRESENCE_TYPE_EXTENDED_AWAY:
		return _("Away");
	case TP_CONNECTION_PRESENCE_TYPE_HIDDEN:
		return _("Hidden");
	case TP_CONNECTION_PRESENCE_TYPE_OFFLINE:
		return _("Offline");
	case TP_CONNECTION_PRESENCE_TYPE_UNSET:
	case TP_CONNECTION_PRESENCE_TYPE_UNKNOWN:
	case TP_CONNECTION_PRESENCE_TYPE_ERROR:
		return NULL;
	}

	return NULL;
}

const gchar *
empathy_presence_to_str (TpConnectionPresenceType presence)
{
	int i;

	for (i = 0 ; presence_types[i].name != NULL; i++)
		if (presence == presence_types[i].type)
			return presence_types[i].name;

	return NULL;
}

TpConnectionPresenceType
empathy_presence_from_str (const gchar *str)
{
	int i;

	for (i = 0 ; presence_types[i].name != NULL; i++)
		if (!tp_strdiff (str, presence_types[i].name))
			return presence_types[i].type;

	return TP_CONNECTION_PRESENCE_TYPE_UNSET;
}

gchar *
empathy_file_lookup (const gchar *filename, const gchar *subdir)
{
	gchar *path;

	if (!subdir) {
		subdir = ".";
	}

	path = g_build_filename (g_getenv ("EMPATHY_SRCDIR"), subdir, filename, NULL);
	if (!g_file_test (path, G_FILE_TEST_EXISTS)) {
		g_free (path);
		path = g_build_filename (DATADIR, "empathy", filename, NULL);
	}

	return path;
}

guint
empathy_proxy_hash (gconstpointer key)
{
	TpProxy      *proxy = TP_PROXY (key);
	TpProxyClass *proxy_class = TP_PROXY_GET_CLASS (key);

	g_return_val_if_fail (TP_IS_PROXY (proxy), 0);
	g_return_val_if_fail (proxy_class->must_have_unique_name, 0);

	return g_str_hash (proxy->object_path) ^ g_str_hash (proxy->bus_name);
}

gboolean
empathy_proxy_equal (gconstpointer a,
		     gconstpointer b)
{
	TpProxy *proxy_a = TP_PROXY (a);
	TpProxy *proxy_b = TP_PROXY (b);
	TpProxyClass *proxy_a_class = TP_PROXY_GET_CLASS (a);
	TpProxyClass *proxy_b_class = TP_PROXY_GET_CLASS (b);

	g_return_val_if_fail (TP_IS_PROXY (proxy_a), FALSE);
	g_return_val_if_fail (TP_IS_PROXY (proxy_b), FALSE);
	g_return_val_if_fail (proxy_a_class->must_have_unique_name, 0);
	g_return_val_if_fail (proxy_b_class->must_have_unique_name, 0);

	return g_str_equal (proxy_a->object_path, proxy_b->object_path) &&
	       g_str_equal (proxy_a->bus_name, proxy_b->bus_name);
}

gboolean
empathy_check_available_state (void)
{
	TpConnectionPresenceType presence;
	EmpathyIdle *idle;

	idle = empathy_idle_dup_singleton ();
	presence = empathy_idle_get_state (idle);
	g_object_unref (idle);

	if (presence != TP_CONNECTION_PRESENCE_TYPE_AVAILABLE &&
		presence != TP_CONNECTION_PRESENCE_TYPE_UNSET) {
		return FALSE;
	}

	return TRUE;
}

gint
empathy_uint_compare (gconstpointer a,
		      gconstpointer b)
{
	return *(guint *) a - *(guint *) b;
}