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Diffstat (limited to 'libempathy/gossip-utils.c')
| -rw-r--r-- | libempathy/gossip-utils.c | 447 |
1 files changed, 447 insertions, 0 deletions
diff --git a/libempathy/gossip-utils.c b/libempathy/gossip-utils.c new file mode 100644 index 000000000..24f5cd432 --- /dev/null +++ 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); +} + |