X-Git-Url: http://www.privoxy.org/gitweb/?a=blobdiff_plain;f=cgisimple.c;h=e465be36290363978ac7384da6c9468c74e4be3e;hb=23d88f76d603f8059e6075a7d8987f449aca3992;hp=600eea589f3a7bae3f804fc7908b05659e195fd4;hpb=21d1a446f5c67adceab5a378a9703be131c0b23b;p=privoxy.git

diff --git a/cgisimple.c b/cgisimple.c
index 600eea58..e465be36 100644
--- a/cgisimple.c
+++ b/cgisimple.c
@@ -5,7 +5,7 @@
  * Purpose     :  Simple CGIs to get information about Privoxy's
  *                status.
  *
- * Copyright   :  Written by and Copyright (C) 2001-2020 the
+ * Copyright   :  Written by and Copyright (C) 2001-2021 the
  *                Privoxy team. https://www.privoxy.org/
  *
  *                Based on the Internet Junkbuster originally written
@@ -526,8 +526,8 @@ jb_err cgi_toggle_client_tag(struct client_state *csp,
  *          3  :  parameters = map of cgi parameters
  *
  * CGI Parameters :
- *           type : Selects the type of banner between "trans", "logo",
- *                  and "auto". Defaults to "logo" if absent or invalid.
+ *           type : Selects the type of banner between "trans", "pattern",
+ *                  and "auto". Defaults to "pattern" if absent or invalid.
  *                  "auto" means to select as if we were image-blocking.
  *                  (Only the first character really counts; b and t are
  *                  equivalent).
@@ -542,6 +542,14 @@ jb_err cgi_send_banner(struct client_state *csp,
 {
    char imagetype = lookup(parameters, "type")[0];
 
+   if (imagetype != 'a' && imagetype != 'b' &&
+       imagetype != 'p' && imagetype != 't')
+   {
+      log_error(LOG_LEVEL_ERROR, "Overruling invalid image type '%c'.",
+         imagetype);
+      imagetype = 'p';
+   }
+
    /*
     * If type is auto, then determine the right thing
     * to do from the set-image-blocker action