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gparam: Tighten up property name validation

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Inline with the stricter version of the property naming rules from the
documentation, tighten up the validation of property names at
installation time.

Signed-off-by: Philip Withnall <withnall@endlessm.com>
This commit is contained in:
Philip Withnall
2019-11-12 19:34:05 +00:00
parent c0e5c6c62c
commit 30e630c9df
2 changed files with 46 additions and 12 deletions
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35
gobject/gparam.c
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@@ -358,6 +358,8 @@ g_param_spec_get_blurb (GParamSpec *pspec)
return NULL;
}
/* @key must have already been validated with is_valid()
* Modifies @key in place. */
static void
canonicalize_key (gchar *key)
{
@@ -367,28 +369,37 @@ canonicalize_key (gchar *key)
{
gchar c = *p;
if (c != '-' &&
(c < '0' || c > '9') &&
(c < 'A' || c > 'Z') &&
(c < 'a' || c > 'z'))
*p = '-';
if (c == '_')
*p = '-';
}
}
/* @key must have already been validated with is_valid() */
static gboolean
is_canonical (const gchar *key)
{
return (strchr (key, '_') == NULL);
}
static gboolean
is_valid_property_name (const gchar *key)
{
const gchar *p;
/* First character must be a letter. */
if ((key[0] < 'A' || key[0] > 'Z') &&
(key[0] < 'a' || key[0] > 'z'))
return FALSE;
for (p = key; *p != 0; p++)
{
gchar c = *p;
const gchar c = *p;
if (c != '-' &&
(c < '0' || c > '9') &&
(c < 'A' || c > 'Z') &&
(c < 'a' || c > 'z'))
return FALSE;
if (c != '-' && c != '_' &&
(c < '0' || c > '9') &&
(c < 'A' || c > 'Z') &&
(c < 'a' || c > 'z'))
return FALSE;
}
return TRUE;
@@ -428,7 +439,7 @@ g_param_spec_internal (GType param_type,
g_return_val_if_fail (G_TYPE_IS_PARAM (param_type) && param_type != G_TYPE_PARAM, NULL);
g_return_val_if_fail (name != NULL, NULL);
g_return_val_if_fail ((name[0] >= 'A' && name[0] <= 'Z') || (name[0] >= 'a' && name[0] <= 'z'), NULL);
g_return_val_if_fail (is_valid_property_name (name), NULL);
g_return_val_if_fail (!(flags & G_PARAM_STATIC_NAME) || is_canonical (name), NULL);
pspec = (gpointer) g_type_create_instance (param_type);