1 files changed, 98 insertions, 0 deletions

diff --git a/inc/3rdparty/libraries/mpdf/mpdfi/filters/FilterASCII85.php b/inc/3rdparty/libraries/mpdf/mpdfi/filters/FilterASCII85.php
new file mode 100644
index 00000000..fc42d574
--- /dev/null
+++ b/inc/3rdparty/libraries/mpdf/mpdfi/filters/FilterASCII85.php
@@ -0,0 +1,98 @@
+<?php
+//
+//  FPDI - Version 1.3.1
+//
+//    Copyright 2004-2009 Setasign - Jan Slabon
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+if (!defined('ORD_z'))
+        define('ORD_z',ord('z'));
+if (!defined('ORD_exclmark'))
+        define('ORD_exclmark', ord('!'));
+if (!defined('ORD_u'))  
+        define('ORD_u', ord('u'));
+if (!defined('ORD_tilde'))
+        define('ORD_tilde', ord('~'));
+
+class FilterASCII85 {
+    
+    function error($msg) {
+        die($msg);
+    }
+    
+    function decode($in) {
+        $out = '';
+        $state = 0;
+        $chn = null;
+        
+        $l = strlen($in);
+        
+        for ($k = 0; $k < $l; ++$k) {
+            $ch = ord($in[$k]) & 0xff;
+            
+            if ($ch == ORD_tilde) {
+                break;
+            }
+            if (preg_match('/^\s$/',chr($ch))) {
+                continue;
+            }
+            if ($ch == ORD_z && $state == 0) {
+                $out .= chr(0).chr(0).chr(0).chr(0);
+                continue;
+            }
+            if ($ch < ORD_exclmark || $ch > ORD_u) {
+                $this->error('Illegal character in ASCII85Decode.');
+            }
+            
+            $chn[$state++] = $ch - ORD_exclmark;
+            
+            if ($state == 5) {
+                $state = 0;
+                $r = 0;
+                for ($j = 0; $j < 5; ++$j)
+                    $r = $r * 85 + $chn[$j];
+                $out .= chr($r >> 24);
+                $out .= chr($r >> 16);
+                $out .= chr($r >> 8);
+                $out .= chr($r);
+            }
+        }
+        $r = 0;
+        
+        if ($state == 1)
+            $this->error('Illegal length in ASCII85Decode.');
+        if ($state == 2) {
+            $r = $chn[0] * 85 * 85 * 85 * 85 + ($chn[1]+1) * 85 * 85 * 85;
+            $out .= chr($r >> 24);
+        }
+        else if ($state == 3) {
+            $r = $chn[0] * 85 * 85 * 85 * 85 + $chn[1] * 85 * 85 * 85  + ($chn[2]+1) * 85 * 85;
+            $out .= chr($r >> 24);
+            $out .= chr($r >> 16);
+        }
+        else if ($state == 4) {
+            $r = $chn[0] * 85 * 85 * 85 * 85 + $chn[1] * 85 * 85 * 85  + $chn[2] * 85 * 85  + ($chn[3]+1) * 85 ;
+            $out .= chr($r >> 24);
+            $out .= chr($r >> 16);
+            $out .= chr($r >> 8);
+        }
+
+        return $out;
+    }
+    
+    function encode($in) {
+        $this->error("ASCII85 encoding not implemented.");
+    }
+}
\ No newline at end of file