- /* Check date. */
- $f = file ($p . '_infos');
- $date = trim ($f[0]);
- $block_size = trim ($f[1]);
- $stored_code = trim ($f[2]);
- /* Update date. */
- if (date ('U') - $date > JIRAFEAU_HOUR
- && date ('U') - $date < JIRAFEAU_MONTH)
- {
- if (file_put_contents ($p . '_infos', date ('U') . NL . $block_size . NL . $stored_code) === FALSE)
- {
- jirafeau_block_delete_ ($id);
- echo "Error";
- return;
+/**
+ * Test if visitor's IP is authorized or password is supplied and authorized
+ * @param $ip IP to be challenged
+ * @param $password password to be challenged
+ * @return true if access is valid, false otherwise.
+ */
+function jirafeau_challenge_upload($cfg, $ip, $password)
+{
+ return jirafeau_challenge_upload_ip_without_password($cfg, $ip) ||
+ (!jirafeau_has_upload_password($cfg) && !jirafeau_upload_has_ip_restriction($cfg)) ||
+ (jirafeau_challenge_upload_password($cfg, $password) && jirafeau_challenge_upload_ip($cfg, $ip));
+}
+
+/** Tell if we have some HTTP headers generated by a proxy */
+function has_http_forwarded()
+{
+ return
+ !empty($_SERVER['HTTP_X_FORWARDED_FOR']) ||
+ !empty($_SERVER['http_X_forwarded_for']);
+}
+
+/**
+ * Generate IP list from HTTP headers generated by a proxy
+ * @return array of IP strings
+ */
+function get_ip_list_http_forwarded()
+{
+ $ip_list = array();
+ if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
+ $l = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
+ if ($l === false) {
+ return array();
+ }
+ foreach ($l as $ip) {
+ array_push($ip_list, preg_replace('/\s+/', '', $ip));