Fix error when entering correct proxy URLs with ports and proxy schemas

Entering correct proxy URLS with ports and one of the following schemas
(tcp, udp, unix, udg, ssl, tls) would cause an error (Invalid format given)
even though these proxies are correct.

Now this issue is resolved and the proxies URLs are valid again.

ChangeLog

@@ -1,4 +1,9 @@
 1.9.43
+Core:
+  * FIX: Fix error when entering correct proxy URLs with ports and proxy schemas.
+         Entering correct proxy URLS with ports and one of the following schemas
+         (tcp, udp, unix, udg, ssl, tls) would cause an error (Invalid format given)
+         even though these proxies are correct.
 
 1.9.42
 Security:

share/server/core/classes/GlobalMainCfg.php

@@ -179,7 +179,7 @@ public function __construct() {
                 'http_proxy' => array(
                     'must'    => 0,
                     'default' => null,
-                    'match'   => MATCH_STRING_URL,
+                    'match'   => MATCH_STRING_PROXY,
                 ),
                 'http_proxy_auth' => array(
                     'must'    => 0,

share/server/core/defines/matches.php

@@ -40,8 +40,11 @@
 define('MATCH_STRING_PATH', '/^[0-9a-z\s_.\-\/\\\]+$/i');
 define('MATCH_STRING_PATH_AUTHORISATION', '/^(?!' . DISALLOWED_AUTHORISATION_PATHS . ')[0-9a-z\s_.\-\/\\\]+$/i');
 define('MATCH_ALLOWED_URL_SCHEMES', '(http|https)');
-define('MATCH_STRING_URL', '/^(?:' . MATCH_ALLOWED_URL_SCHEMES . ':)?[0-9a-z\s;|+[\]()=%?&_,.\-#@=\/\\\~\{\}]+$/i');
-define('MATCH_STRING_URL_EMPTY', '/^(?:' . MATCH_ALLOWED_URL_SCHEMES . ':)?[0-9a-z\s;|+[\]()=%?&_,.\-#@=\/\\\~]*$/i');
+define('MATCH_ALLOWED_PROXY_SCHEMES', '(tcp|udp|unix|udg|ssl|tls)');
+define('MATCH_PORT', '(?::[0-9]+)?');
+define('MATCH_STRING_PROXY', '/^(?:' . MATCH_ALLOWED_PROXY_SCHEMES . ':)?[0-9a-z\s;|+[\]()=%?&_,.\-#@=\/\\\~\{\}:]+' . MATCH_PORT . '$/i');
+define('MATCH_STRING_URL', '/^(?:' . MATCH_ALLOWED_URL_SCHEMES . ':)?[0-9a-z\s;|+[\]()=%?&_,.\-#@=\/\\\~\{\}:]+' . MATCH_PORT . '$/i');
+define('MATCH_STRING_URL_EMPTY', '/^(?:' . MATCH_ALLOWED_URL_SCHEMES . ':)?[0-9a-z\s;|+[\]()=%?&_,.\-#@=\/\\\~:]*' . MATCH_PORT . '$/i');
 define('MATCH_GADGET_OPT', '/^[0-9a-z\s:+[\]()_.,\-&?!#@=\/\\\%]+$/i');
 define('MATCH_STRING_STYLE', '/^[0-9a-z:;\-+%#(),.]*$/i');
 define('MATCH_COORDS',       '/^(?:(?:[0-9]+)|([a-z0-9]+(?:%[+-][0-9]+)?))$/');