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-rw-r--r--libempathy/gossip-utils.c447
1 files changed, 447 insertions, 0 deletions
diff --git a/libempathy/gossip-utils.c b/libempathy/gossip-utils.c
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+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/*
+ * Copyright (C) 2003-2007 Imendio AB
+ *
+ * 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Authors: Richard Hult <richard@imendio.com>
+ * Martyn Russell <martyn@imendio.com>
+ */
+
+#include "config.h"
+
+#include <string.h>
+#include <time.h>
+#include <sys/types.h>
+#include <regex.h>
+
+#include <glib/gi18n.h>
+
+#include <libxml/uri.h>
+#include <libmissioncontrol/mc-account.h>
+
+#include "gossip-debug.h"
+#include "gossip-utils.h"
+#include "gossip-paths.h"
+#include "empathy-session.h"
+#include "empathy-contact-manager.h"
+
+#define DEBUG_DOMAIN "Utils"
+
+static void regex_init (void);
+
+gchar *
+gossip_substring (const gchar *str,
+ gint start,
+ gint end)
+{
+ return g_strndup (str + start, end - start);
+}
+
+/*
+ * Regular Expression code to match urls.
+ */
+#define USERCHARS "-A-Za-z0-9"
+#define PASSCHARS "-A-Za-z0-9,?;.:/!%$^*&~\"#'"
+#define HOSTCHARS "-A-Za-z0-9"
+#define PATHCHARS "-A-Za-z0-9_$.+!*(),;:@&=?/~#%"
+#define SCHEME "(news:|telnet:|nntp:|file:/|https?:|ftps?:|webcal:)"
+#define USER "[" USERCHARS "]+(:["PASSCHARS "]+)?"
+#define URLPATH "/[" PATHCHARS "]*[^]'.}>) \t\r\n,\\\"]"
+
+static regex_t dingus[GOSSIP_REGEX_ALL];
+
+static void
+regex_init (void)
+{
+ static gboolean inited = FALSE;
+ const gchar *expression;
+ gint i;
+
+ if (inited) {
+ return;
+ }
+
+ for (i = 0; i < GOSSIP_REGEX_ALL; i++) {
+ switch (i) {
+ case GOSSIP_REGEX_AS_IS:
+ expression =
+ SCHEME "//(" USER "@)?[" HOSTCHARS ".]+"
+ "(:[0-9]+)?(" URLPATH ")?";
+ break;
+ case GOSSIP_REGEX_BROWSER:
+ expression =
+ "(www|ftp)[" HOSTCHARS "]*\\.[" HOSTCHARS ".]+"
+ "(:[0-9]+)?(" URLPATH ")?";
+ break;
+ case GOSSIP_REGEX_EMAIL:
+ expression =
+ "(mailto:)?[a-z0-9][a-z0-9.-]*@[a-z0-9]"
+ "[a-z0-9-]*(\\.[a-z0-9][a-z0-9-]*)+";
+ break;
+ case GOSSIP_REGEX_OTHER:
+ expression =
+ "news:[-A-Z\\^_a-z{|}~!\"#$%&'()*+,./0-9;:=?`]+"
+ "@[" HOSTCHARS ".]+(:[0-9]+)?";
+ break;
+ default:
+ /* Silence the compiler. */
+ expression = NULL;
+ continue;
+ }
+
+ memset (&dingus[i], 0, sizeof (regex_t));
+ regcomp (&dingus[i], expression, REG_EXTENDED | REG_ICASE);
+ }
+
+ inited = TRUE;
+}
+
+gint
+gossip_regex_match (GossipRegExType type,
+ const gchar *msg,
+ GArray *start,
+ GArray *end)
+{
+ regmatch_t matches[1];
+ gint ret = 0;
+ gint num_matches = 0;
+ gint offset = 0;
+ gint i;
+
+ g_return_val_if_fail (type >= 0 || type <= GOSSIP_REGEX_ALL, 0);
+
+ regex_init ();
+
+ while (!ret && type != GOSSIP_REGEX_ALL) {
+ ret = regexec (&dingus[type], msg + offset, 1, matches, 0);
+ if (ret == 0) {
+ gint s;
+
+ num_matches++;
+
+ s = matches[0].rm_so + offset;
+ offset = matches[0].rm_eo + offset;
+
+ g_array_append_val (start, s);
+ g_array_append_val (end, offset);
+ }
+ }
+
+ if (type != GOSSIP_REGEX_ALL) {
+ gossip_debug (DEBUG_DOMAIN,
+ "Found %d matches for regex type:%d",
+ num_matches, type);
+ return num_matches;
+ }
+
+ /* If GOSSIP_REGEX_ALL then we run ALL regex's on the string. */
+ for (i = 0; i < GOSSIP_REGEX_ALL; i++, ret = 0) {
+ while (!ret) {
+ ret = regexec (&dingus[i], msg + offset, 1, matches, 0);
+ if (ret == 0) {
+ gint s;
+
+ num_matches++;
+
+ s = matches[0].rm_so + offset;
+ offset = matches[0].rm_eo + offset;
+
+ g_array_append_val (start, s);
+ g_array_append_val (end, offset);
+ }
+ }
+ }
+
+ gossip_debug (DEBUG_DOMAIN,
+ "Found %d matches for ALL regex types",
+ num_matches);
+
+ return num_matches;
+}
+
+gint
+gossip_strcasecmp (const gchar *s1,
+ const gchar *s2)
+{
+ return gossip_strncasecmp (s1, s2, -1);
+}
+
+gint
+gossip_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
+gossip_xml_validate (xmlDoc *doc,
+ const gchar *dtd_filename)
+{
+ gchar *path, *escaped;
+ xmlValidCtxt cvp;
+ xmlDtd *dtd;
+ gboolean ret;
+
+ path = gossip_paths_get_dtd_path (dtd_filename);
+
+ /* 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
+gossip_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 *
+gossip_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 = gossip_xml_node_get_child (node, child_name);
+ if (l) {
+ return xmlNodeGetContent (l);
+ }
+
+ return NULL;
+}
+
+xmlNodePtr
+gossip_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;
+}
+
+GType
+gossip_dbus_type_to_g_type (const gchar *dbus_type_string)
+{
+ if (dbus_type_string == NULL)
+ return G_TYPE_NONE;
+
+ if (dbus_type_string[0] == 's') {
+ return G_TYPE_STRING;
+ }
+ else if (dbus_type_string[0] == 'b') {
+ return G_TYPE_BOOLEAN;
+ }
+ else if (dbus_type_string[0] == 'q') {
+ return G_TYPE_UINT;
+ }
+ else if (dbus_type_string[0] == 'n') {
+ return G_TYPE_INT;
+ }
+
+ g_assert_not_reached ();
+ return G_TYPE_NONE;
+}
+
+const gchar *
+gossip_g_type_to_dbus_type (GType g_type)
+{
+ switch (g_type)
+ {
+ case G_TYPE_STRING:
+ return "s";
+ case G_TYPE_BOOLEAN:
+ return "b";
+ case G_TYPE_UINT:
+ return "q";
+ case G_TYPE_INT:
+ return "n";
+ default:
+ g_assert_not_reached ();
+ }
+
+ return NULL;
+}
+
+gchar *
+gossip_g_value_to_string (const GValue *value)
+{
+ gchar *return_string = NULL;
+ GValue string_g_value = {0, };
+
+ g_value_init (&string_g_value, G_TYPE_STRING);
+ g_value_transform (value, &string_g_value);
+ return_string = g_value_dup_string (&string_g_value);
+ g_value_unset (&string_g_value);
+
+ return return_string;
+}
+
+GValue *
+gossip_string_to_g_value (const gchar *str, GType type)
+{
+ GValue *g_value;
+
+ g_value = g_new0 (GValue, 1);
+ g_value_init (g_value, type);
+
+ switch (type) {
+ case G_TYPE_STRING:
+ g_value_set_string (g_value, str);
+ break;
+ case G_TYPE_BOOLEAN:
+ g_value_set_boolean (g_value, (str[0] == 'y' || str[0] == 'T'));
+ break;
+ case G_TYPE_UINT:
+ g_value_set_uint (g_value, atoi (str));
+ break;
+ case G_TYPE_INT:
+ g_value_set_int (g_value, atoi (str));
+ break;
+ default:
+ g_assert_not_reached ();
+ }
+
+ return g_value;
+}
+
+gboolean
+gossip_g_value_equal (const GValue *value1,
+ const GValue *value2)
+{
+ GType type;
+
+ g_return_val_if_fail (value1 != NULL, FALSE);
+ g_return_val_if_fail (value2 != NULL, FALSE);
+
+ type = G_VALUE_TYPE (value1);
+ if (type != G_VALUE_TYPE (value2)) {
+ return FALSE;
+ }
+
+ switch (type)
+ {
+ case G_TYPE_STRING: {
+ const gchar *str1;
+ const gchar *str2;
+
+ str1 = g_value_get_string (value1);
+ str2 = g_value_get_string (value2);
+ return (str1 && str2 && strcmp (str1, str2) == 0) ||
+ (G_STR_EMPTY (str1) && G_STR_EMPTY (str2));
+ }
+ case G_TYPE_BOOLEAN:
+ return g_value_get_boolean (value1) == g_value_get_boolean (value2);
+ case G_TYPE_UINT:
+ return g_value_get_uint (value1) == g_value_get_uint (value2);
+ case G_TYPE_INT:
+ return g_value_get_int (value1) == g_value_get_int (value2);
+ default:
+ g_warning ("Unsupported GType in value comparaison");
+ }
+
+ return FALSE;
+}
+
+guint
+gossip_account_hash (gconstpointer key)
+{
+ return g_str_hash (mc_account_get_unique_name (MC_ACCOUNT (key)));
+}
+
+gboolean
+gossip_account_equal (gconstpointer a,
+ gconstpointer b)
+{
+ const gchar *name_a;
+ const gchar *name_b;
+
+ name_a = mc_account_get_unique_name (MC_ACCOUNT (a));
+ name_b = mc_account_get_unique_name (MC_ACCOUNT (b));
+
+ return g_str_equal (name_a, name_b);
+}
+
+GossipContact *
+gossip_get_own_contact_from_contact (GossipContact *contact)
+{
+ EmpathyContactManager *manager;
+ McAccount *account;
+
+ g_return_val_if_fail (GOSSIP_IS_CONTACT (contact), NULL);
+
+ manager = empathy_session_get_contact_manager ();
+ account = gossip_contact_get_account (contact);
+
+ return empathy_contact_manager_get_own (manager, account);
+}
+