* check for a valid foldername

[modest] / src / modest-text-utils.c

diff --git a/src/modest-text-utils.c b/src/modest-text-utils.c
index 3c63385..aaa025d 100644 (file)
--- a/src/modest-text-utils.c
+++ b/src/modest-text-utils.c
@@ -28,8 +28,14 @@
  */
 
 
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif /*_GNU_SOURCE*/
+#include <string.h> /* for strcasestr */
+
+
 #include <glib.h>
-#include <string.h>
 #include <stdlib.h>
 #include <glib/gi18n.h>
 #include <regex.h>
@@ -1071,6 +1077,53 @@ modest_text_utils_get_display_date (time_t date)
 
 
 gboolean
+modest_text_utils_validate_folder_name (const gchar *folder_name)
+{
+       /* based on http://msdn2.microsoft.com/en-us/library/aa365247.aspx,
+        * with some extras */
+       
+       guint len;
+       const gchar **cursor;
+       const gchar *forbidden_chars[] = {
+               "<", ">", ":", "\"", "/", "\\", "|", "?", "*", "^", "%", "$", NULL
+       };
+       const gchar *forbidden_names[] = { /* windows does not like these */
+               "CON", "PRN", "AUX", "NUL", "COM1", "COM2", "COM3", "COM4", "COM5", "COM6",
+               "COM7", "COM8", "COM9", "LPT1", "LPT2", "LPT3", "LPT4", "LPT5", "LPT6", "LPT7", "LPT8", "LPT9",
+               ".", "..", NULL
+       };
+       
+       /* cannot be NULL */
+       if (!folder_name) 
+               return FALSE;
+
+       /* cannot be empty */
+       len = strlen(folder_name);
+       if (len == 0)
+               return FALSE;
+       
+       /* cannot start or end with a space */
+       if (g_ascii_isspace(folder_name[0]) || g_ascii_isspace(folder_name[len - 1]))
+               return FALSE; 
+
+       /* cannot contain a forbidden char */
+       for (cursor = forbidden_chars; cursor && *cursor; ++cursor)
+               if (strstr(folder_name, *cursor) != NULL)
+                       return FALSE;
+       
+       /* cannot contain a forbidden word */
+       if (len <= 4) {
+               for (cursor = forbidden_names; cursor && *cursor; ++cursor) {
+                       if (g_ascii_strcasecmp (folder_name, *cursor) == 0)
+                               return FALSE;
+               }
+       }
+       return TRUE; /* it's valid! */
+}
+
+
+
+gboolean
 modest_text_utils_validate_domain_name (const gchar *domain)
 {
        gboolean valid = FALSE;