First set of modifications

workflow/engine/classes/Gzip_File.php

@@ -0,0 +1,79 @@
+<?php
+/*--------------------------------------------------
+ * TAR/GZIP/BZIP2/ZIP ARCHIVE CLASSES 2.1
+ * By Devin Doucette
+ * Copyright (c) 2005 Devin Doucette
+ * Email: darksnoopy@shaw.ca
+ *--------------------------------------------------
+ * Email bugs/suggestions to darksnoopy@shaw.ca
+ *--------------------------------------------------
+ * This script has been created and released under
+ * the GNU GPL and is free to use and redistribute
+ * only if this copyright statement is not removed
+ *--------------------------------------------------*/
+
+/**
+ *
+ * @package workflow.engine.classes
+ */
+
+/**
+ * This class is derived of the class archive, is employed to use archives .
+ * gzip
+ *
+ * @package workflow.engine.classes
+ *
+ */class gzip_file extends tar_file
+{
+
+    /**
+     * This function is the constructor of the class gzip_file
+     *
+     * @param string $name
+     * @return void
+     */
+    public function gzip_file ($name)
+    {
+        $this->tar_file( $name );
+        $this->options['type'] = "gzip";
+    }
+
+    /**
+     * This function is employed to create files .
+     * gzip
+     *
+     * @return boolean
+     */
+    public function create_gzip ()
+    {
+        if ($this->options['inmemory'] == 0) {
+            $pwd = getcwd();
+            chdir( $this->options['basedir'] );
+            if ($fp = gzopen( $this->options['name'], "wb{$this->options['level']}" )) {
+                fseek( $this->archive, 0 );
+                while ($temp = fread( $this->archive, 1048576 )) {
+                    gzwrite( $fp, $temp );
+                }
+                gzclose( $fp );
+                chdir( $pwd );
+            } else {
+                $this->error[] = "Could not open {$this->options['name']} for writing.";
+                chdir( $pwd );
+                return 0;
+            }
+        } else {
+            $this->archive = gzencode( $this->archive, $this->options['level'] );
+        }
+        return 1;
+    }
+
+    /**
+     * This function open a archive of the class gzip_file
+     *
+     * @return void
+     */
+    public function open_archive ()
+    {
+        return @gzopen( $this->options['name'], "rb" );
+    }
+}