Ongoing changes to Multiple Download Manager

Mark Holtzhausen
1 parent 7768b7ef
Showing 2 changed files with 144 additions and 0 deletions
ktwebservice/KTDownloadManager.inc.php
webservice/clienttools/services/mdownload.php
@@ -197,6 +197,66 @@ class KTDownloadManager
  
         return true;
 	}
+	
+	function multipart_download($document_id, $hash, $version = null, $apptype = 'ws', $chunkSize = NULL, $part = 0) {
+        $oConfig =& KTConfig::getSingleton();
+		
+        $sql = "SELECT 1 FROM download_files WHERE hash=? AND session=? AND document_id=?";
+		$rows = DBUtil::getResultArray ( array ($sql, array ($hash, $this->session, $document_id ) ) );
+		if (PEAR::isError ( $rows )) {
+			return $rows;
+		}
+		
+		if (count ( $rows ) == 0) {
+			return new PEAR_Error ( 'Invalid session.' );
+		}
+		
+		// If document is being downloaded by an external user bypass the session checking
+		$check = strstr ( $this->session, 'ktext_' . $document_id );
+		if ($check == 0 && $check !== false) {
+			// Use external download function
+			return $this->download_ext ( $document_id, $hash, $version = null );
+		}
+		
+		$storage = & KTStorageManagerUtil::getSingleton ();
+		
+		$ktapi = &new KTAPI ( );
+		$res = $ktapi->get_active_session ( $this->session, null, $apptype );
+		if (PEAR::isError ( $res )) {
+			return $res;
+		}
+		
+		$document = $ktapi->get_document_by_id ( $document_id );
+		if (PEAR::isError ( $document )) {
+			return $document;
+		}
+		
+		if (! empty ( $version )) {
+			$version = KTDocumentContentVersion::get ( $version );
+			$res = $storage->downloadVersion ( $document->document, $version );
+		} else {
+			$res = $storage->download ( $document->document );
+		}
+		if (PEAR::isError ( $res )) {
+			return $res;
+		}
+		
+		// Set Default Chunk Size (in KB)
+		$chunkSize=(int)$chunkSize;
+		if($chunkSize<1024)$chunkSize=1024;
+		
+		//Make sure part is set
+		$part=(int)$part;
+		
+		$fileSize=$document->getFileSize();
+		$fileName=$document->getFileName();
+		$path=$oConfig->get('urls/documentRoot').'/'.$document->getStoragePath();
+		
+//		$sql = "DELETE FROM download_files WHERE hash='$hash' AND session='$this->session' AND document_id=$document_id";
+//		$result = DBUtil::runQuery ( $sql );
+		
+		return true;
+	}
  
 	function download_ext($document_id, $hash, $version = null)
 	{
+<?php
+
+/**
+ *
+ * This does the download of a file based on the download_files table.
+ *
+ * KnowledgeTree Community Edition
+ * Document Management Made Simple
+ * Copyright (C) 2008, 2009 KnowledgeTree Inc.
+ * Portions copyright The Jam Warehouse Software (Pty) Limited
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 3 as published by the
+ * Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * You can contact KnowledgeTree Inc., PO Box 7775 #87847, San Francisco,
+ * California 94120-7775, or email info@knowledgetree.com.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "Powered by
+ * KnowledgeTree" logo and retain the original copyright notice. If the display of the
+ * logo is not reasonably feasible for technical reasons, the Appropriate Legal Notices
+ * must display the words "Powered by KnowledgeTree" and retain the original
+ * copyright notice.
+ * Contributor( s): ______________________________________
+ *
+ */
+
+if (!array_key_exists('code',$_GET))
+{
+	$msg = urlencode('Code not specified.');
+	print "status_code=1&msg=$msg";
+	exit;
+}
+
+$hash = $_GET['code'];
+
+if (!array_key_exists('d',$_GET))
+{
+	$msg = urlencode('Document not specified.');
+	print "status_code=2&msg=$msg";
+	exit;
+}
+
+$document_id = $_GET['d'];
+
+if (!array_key_exists('u',$_GET))
+{
+	$msg = urlencode('Session not specified.');
+	print "status_code=3&msg=$msg";
+	exit;
+}
+
+$session = $_GET['u'];
+$apptype = (isset($_GET['apptype'])) ? $_GET['apptype'] : 'ws';
+
+require_once('../../../config/dmsDefaults.php');
+require_once('../../../ktapi/ktapi.inc.php');
+require_once('../../../ktwebservice/KTDownloadManager.inc.php');
+
+$download_manager = new KTDownloadManager();
+$download_manager->set_session($session);
+
+$response = $download_manager->multipart_download($document_id, $hash, null, $apptype,1024,$_GET['part']);
+if (PEAR::isError($response))
+{
+	$msg = urlencode($response->getMessage());
+	print "status_code=4&msg=$msg:".$_GET["u"].":".$_GET["d"].":".$_GET["code"].":".$_GET["apptype"].":";
+	exit;
+}
+
+?>
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