From d370bbc3d3550bb5c6015215c9af48a812e240e9 Mon Sep 17 00:00:00 2001
From: tbrehm <t.brehm@ispconfig.org>
Date: Fri, 08 Jun 2012 05:43:10 -0400
Subject: [PATCH] Implemented: FS#2280 - Extend the tform library to apply filters on form values

---
 interface/lib/classes/functions.inc.php |   68 +++++++++++++++++++++++++++++++++
 1 files changed, 67 insertions(+), 1 deletions(-)

diff --git a/interface/lib/classes/functions.inc.php b/interface/lib/classes/functions.inc.php
index b744e35..0f29003 100644
--- a/interface/lib/classes/functions.inc.php
+++ b/interface/lib/classes/functions.inc.php
@@ -101,7 +101,7 @@
 	}
 	
 	public function get_ispconfig_url() {
-		$url = (stristr($_SERVER['SERVER_PROTOCOL'],'HTTPS'))?'https':'http';
+		$url = (stristr($_SERVER['SERVER_PROTOCOL'],'HTTPS') || stristr($_SERVER['HTTPS'],'on'))?'https':'http';
 		$url .= '://'.$_SERVER['SERVER_NAME'];
 		if($_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443) {
 			$url .= ':'.$_SERVER['SERVER_PORT'];
@@ -109,6 +109,72 @@
 		return $url;
 	}
 	
+    function json_encode($data) {
+		if(!function_exists('json_encode')){
+			if(is_array($data) || is_object($data)){
+				$islist = is_array($data) && (empty($data) || array_keys($data) === range(0,count($data)-1));
+
+				if($islist){
+					$json = '[' . implode(',', array_map(array($this, "json_encode"), $data) ) . ']';
+				} else {
+					$items = Array();
+					foreach( $data as $key => $value ) {
+						$items[] = $this->json_encode("$key") . ':' . $this->json_encode($value);
+					}
+					$json = '{' . implode(',', $items) . '}';
+				}
+			} elseif(is_string($data)){
+				# Escape non-printable or Non-ASCII characters.
+				# I also put the \\ character first, as suggested in comments on the 'addclashes' page.
+				$string = '"'.addcslashes($data, "\\\"\n\r\t/".chr(8).chr(12)).'"';
+				$json = '';
+				$len = strlen($string);
+				# Convert UTF-8 to Hexadecimal Codepoints.
+				for($i = 0; $i < $len; $i++){
+					$char = $string[$i];
+					$c1 = ord($char);
+
+					# Single byte;
+					if($c1 <128){
+						$json .= ($c1 > 31) ? $char : sprintf("\\u%04x", $c1);
+						continue;
+					}
+
+					# Double byte
+					$c2 = ord($string[++$i]);
+					if(($c1 & 32) === 0){
+						$json .= sprintf("\\u%04x", ($c1 - 192) * 64 + $c2 - 128);
+						continue;
+					}
+
+					# Triple
+					$c3 = ord($string[++$i]);
+					if(($c1 & 16) === 0){
+						$json .= sprintf("\\u%04x", (($c1 - 224) <<12) + (($c2 - 128) << 6) + ($c3 - 128));
+						continue;
+					}
+
+					# Quadruple
+					$c4 = ord($string[++$i]);
+					if(($c1 & 8) === 0){
+						$u = (($c1 & 15) << 2) + (($c2>>4) & 3) - 1;
+
+						$w1 = (54<<10) + ($u<<6) + (($c2 & 15) << 2) + (($c3>>4) & 3);
+						$w2 = (55<<10) + (($c3 & 15)<<6) + ($c4-128);
+						$json .= sprintf("\\u%04x\\u%04x", $w1, $w2);
+					}
+				}
+			} else {
+				# int, floats, bools, null
+				$json = strtolower(var_export($data, true));
+			}
+			return $json;
+		} else {
+			return json_encode($data);
+		}
+    }
+
+	
 		
 }
 

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