+
+FILE*
+modest_utils_open_mcc_mapping_file (gboolean *translated)
+{
+ FILE* result = NULL;
+ const gchar* path;
+ gchar *path1 = g_strdup_printf ("%s.%s", MODEST_OPERATOR_WIZARD_MCC_MAPPING, getenv("LANG"));
+ const gchar* path2 = MODEST_MCC_MAPPING;
+
+ if (translated)
+ *translated = TRUE;
+
+ if (access (path1, R_OK) == 0) {
+ path = path1;
+ } else if (access (MODEST_OPERATOR_WIZARD_MCC_MAPPING, R_OK) == 0) {
+ path = MODEST_OPERATOR_WIZARD_MCC_MAPPING;
+ if (translated)
+ *translated = FALSE;
+ } else if (access (path2, R_OK) == 0) {
+ path = path2;
+ } else {
+ g_warning ("%s: neither '%s' nor '%s' is a readable mapping file",
+ __FUNCTION__, path1, path2);
+ goto end;
+ }
+
+ result = fopen (path, "r");
+ if (!result) {
+ g_warning ("%s: error opening mapping file '%s': %s",
+ __FUNCTION__, path, strerror(errno));
+ goto end;
+ }
+ end:
+ g_free (path1);
+ return result;
+}
+
+/* cluster mcc's, based on the list
+ * http://en.wikipedia.org/wiki/Mobile_country_code
+ */
+static int
+effective_mcc (gint mcc)
+{
+ switch (mcc) {
+ case 405: return 404; /* india */
+ case 441: return 440; /* japan */
+ case 235: return 234; /* united kingdom */
+ case 311:
+ case 312:
+ case 313:
+ case 314:
+ case 315:
+ case 316: return 310; /* united states */
+ default: return mcc;
+ }
+}
+
+/* each line is of the form:
+ xxx logical_id
+
+ NOTE: this function is NOT re-entrant, the out-param country
+ are static strings that should NOT be freed. and will change when
+ calling this function again
+
+ also note, this function will return the "effective mcc", which
+ is the normalized mcc for a country - ie. even if the there
+ are multiple entries for the United States with various mccs,
+ this function will always return 310, even if the real mcc parsed
+ would be 314. see the 'effective_mcc' function above.
+*/
+static int
+parse_mcc_mapping_line (const char* line, char** country)
+{
+ char mcc[4]; /* the mcc code, always 3 bytes*/
+ gchar *iter, *tab, *final;
+
+ if (!line) {
+ *country = NULL;
+ return 0;
+ }
+
+ /* Go to the first tab (Country separator) */
+ tab = g_utf8_strrchr (line, -1, '\t');
+ if (!tab)
+ return 0;
+
+ *country = g_utf8_find_next_char (tab, NULL);
+
+ /* Replace by end of string. We need to use strlen, because
+ g_utf8_strrchr expects bytes and not UTF8 characters */
+ final = g_utf8_strrchr (tab, strlen (tab) + 1, '\n');
+ if (G_LIKELY (final))
+ *final = '\0';
+ else
+ tab[strlen(tab) - 1] = '\0';
+
+ /* Get MCC code */
+ mcc[0] = g_utf8_get_char (line);
+ iter = g_utf8_find_next_char (line, NULL);
+ mcc[1] = g_utf8_get_char (iter);
+ iter = g_utf8_find_next_char (iter, NULL);
+ mcc[2] = g_utf8_get_char (iter);
+ mcc[3] = '\0';
+
+ return effective_mcc ((int) strtol ((const char*)mcc, NULL, 10));
+}
+
+#define MCC_FILE_MAX_LINE_LEN 128 /* max length of a line in MCC file */
+
+/** Note that the mcc_mapping file is installed
+ * by the operator-wizard-settings package.
+ */
+GtkTreeModel *
+modest_utils_create_country_model (void)
+{
+ GtkTreeModel *model;
+
+ model = GTK_TREE_MODEL (gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_INT));
+
+ return model;
+}
+
+void
+modest_utils_fill_country_model (GtkTreeModel *model, gint *locale_mcc)
+{
+ gboolean translated;
+ char line[MCC_FILE_MAX_LINE_LEN];
+ guint previous_mcc = 0;
+ gchar *territory;
+
+ FILE *file;
+
+ file = modest_utils_open_mcc_mapping_file (&translated);
+ if (!file) {
+ g_warning("Could not open mcc_mapping file");
+ }
+
+ /* Get the territory specified for the current locale */
+ territory = nl_langinfo (_NL_ADDRESS_COUNTRY_NAME);
+
+ while (fgets (line, MCC_FILE_MAX_LINE_LEN, file) != NULL) {
+
+ int mcc;
+ char *country = NULL;
+ const gchar *name_translated;
+
+ mcc = parse_mcc_mapping_line (line, &country);
+ if (!country || mcc == 0) {
+ g_warning ("%s: error parsing line: '%s'", __FUNCTION__, line);
+ continue;
+ }
+
+ if (mcc == previous_mcc) {
+ /* g_warning ("already seen: %s", line); */
+ continue;
+ }
+ previous_mcc = mcc;
+
+ if (!(*locale_mcc)) {
+ if (translated) {
+ if (!g_utf8_collate (country, territory))
+ *locale_mcc = mcc;
+ } else {
+ gchar *translation = dgettext ("osso-countries", country);
+ if (!g_utf8_collate (translation, territory))
+ *locale_mcc = mcc;
+ }
+ }
+ name_translated = dgettext ("osso-countries", country);
+
+ /* Add the row to the model: */
+ GtkTreeIter iter;
+ gtk_list_store_append (GTK_LIST_STORE (model), &iter);
+ gtk_list_store_set(GTK_LIST_STORE (model), &iter,
+ MODEST_UTILS_COUNTRY_MODEL_COLUMN_MCC, mcc,
+ MODEST_UTILS_COUNTRY_MODEL_COLUMN_NAME, name_translated,
+ -1);
+ }
+ fclose (file);
+
+ /* Fallback to Finland */
+ if (!(*locale_mcc))
+ *locale_mcc = 244;
+
+ /* Sort the items: */
+ gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (model),
+ MODEST_UTILS_COUNTRY_MODEL_COLUMN_NAME, GTK_SORT_ASCENDING);
+}
+