[darcs-to-svn @ initial import]

svn path=/trunk/; revision=2

1 files changed, 447 insertions, 0 deletions

diff --git a/libempathy/gossip-utils.c b/libempathy/gossip-utils.c
new file mode 100644
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+++ b/libempathy/gossip-utils.c
@@ -0,0 +1,447 @@
+/* -*- 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);
+}
+