paivana

commit 9048cd9bfb20a60910b4f8a2bde80dda51a42a98
parent 7ad6ba5669f36531e38425603aaf63921bc25ff7
Author: Christian Grothoff <christian@grothoff.org>
Date:   Thu,  6 Aug 2026 16:44:42 +0200

empty regex matches everything

Diffstat:
M
src/backend/paivana-httpd_templates.c
 | 
10
++++++++--

1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/src/backend/paivana-httpd_templates.c b/src/backend/paivana-httpd_templates.c
@@ -437,6 +437,11 @@ static bool
 parse_template (struct Template *t,
                 const json_t *contract)
 {
+  /* An absent website_regex means "every URL".  So does an empty one:
+     it is what a merchant UI stores for a template that was never
+     given a restriction, and anchoring it would yield "^()$", which
+     matches only the empty string and therefore no URL at all -- a
+     template that silently paywalls nothing. */
   const char *regex = NULL;
   const char *summary = NULL;
   const json_t *choices = NULL;
@@ -471,7 +476,8 @@ parse_template (struct Template *t,
                 en);
     return false;
   }
-  if (NULL != regex)
+  if ( (NULL != regex) &&
+       ('\0' != regex[0]) )
   {
     char *anchored;
     int rc;
@@ -507,7 +513,7 @@ parse_template (struct Template *t,
   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
               "Using payment template %s for `%s'\n",
               t->template_id,
-              regex);
+              (NULL != t->regex) ? t->regex : "(all URLs)");
   return true;
 }