david
28b02db2ea
git-svn-id: https://192.168.0.254/svn/Proyectos.Incam_SGD/tags/3.7.0.2_original@1 eb19766c-00d9-a042-a3a0-45cb8ec72764
241 lines
7.0 KiB
PHP
241 lines
7.0 KiB
PHP
<?php
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/**
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*
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* $Id$
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*
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* KTDownloadManager manages files in the download_files table.
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*
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* KnowledgeTree Community Edition
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* Document Management Made Simple
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* Copyright (C) 2008, 2009 KnowledgeTree Inc.
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*
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*
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* This program is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License version 3 as published by the
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* Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* You can contact KnowledgeTree Inc., PO Box 7775 #87847, San Francisco,
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* California 94120-7775, or email info@knowledgetree.com.
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*
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* The interactive user interfaces in modified source and object code versions
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* of this program must display Appropriate Legal Notices, as required under
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* Section 5 of the GNU General Public License version 3.
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*
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* In accordance with Section 7(b) of the GNU General Public License version 3,
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* these Appropriate Legal Notices must retain the display of the "Powered by
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* KnowledgeTree" logo and retain the original copyright notice. If the display of the
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* logo is not reasonably feasible for technical reasons, the Appropriate Legal Notices
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* must display the words "Powered by KnowledgeTree" and retain the original
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* copyright notice.
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* Contributor( s): ______________________________________
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*
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*/
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class KTDownloadManager
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{
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var $session;
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var $age;
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var $download_url;
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var $random;
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/**
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* Constructor for the download manager.
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*
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* @param KTAPI_Session $session
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* @return KTDownloadManager
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*/
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function KTDownloadManager()
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{
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$config = &KTConfig::getSingleton();
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$this->age = $config->get('webservice/downloadExpiry',5);
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$protocol = $config->get('KnowledgeTree/sslEnabled')?'https':'http';
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$this->download_url = $protocol . '://' . $_SERVER['HTTP_HOST'] . $config->get('webservice/downloadUrl');
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//FIXME: store multipart download url in db config
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$this->multipart_download_url = $protocol . '://' . $_SERVER['HTTP_HOST'] . '/webservice/clienttools/services/mdownload.php';
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$this->random=$config->get('webservice/randomKeyText','jhsdf8q1jkjpoiudfs7sd3ds1');
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}
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/**
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* Sets the current session.
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*
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* @param string $session
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*/
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function set_session($session)
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{
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$this->session = $session;
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}
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/**
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* This returns
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*
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* @access public
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* @param KTAPI_Document $document
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* @return string
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*/
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function allow_download($document, $content_version = null, $multipart = false) {
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assert ( ! is_null ( $document ) );
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$content_version = 0;
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$filesize = 0;
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if ($document instanceof KTAPI_Document) {
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$doc_id = $document->documentid;
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$content_version = $document->document->getContentVersionId ();
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$filesize = $document->document->getFileSize ();
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} else if ($document instanceof Document || $document instanceof DocumentProxy) {
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$doc_id = $document->getId ();
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$content_version = $document->getContentVersionId ();
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$filesize = $document->getFileSize ();
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} else if (is_numeric ( $document )) {
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$doc_id = $document;
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} else
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die ( 'gracefully' );
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//assert(is_a($document, 'KTAPI_Document'));
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$hash = sha1 ( "$doc_id $this->session $this->random" );
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$id = DBUtil::autoInsert ( 'download_files', array ('document_id' => $doc_id, 'session' => $this->session, 'download_date' => date ( 'Y-m-d H:i:s' ), 'content_version' => $content_version, 'filesize' => $filesize, 'hash' => $hash ), array ('noid' => true ) );
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return $multipart?$this->build_multipart_url( $hash, $doc_id ):$this->build_url ( $hash, $doc_id );
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}
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/**
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* This returns the url used to download a document.
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*
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* @param string $hash
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* @param int $documentid
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* @param int $userid
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* @return string
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*/
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function build_url($hash, $documentid) {
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return $this->download_url . "?code=$hash&d=$documentid&u=$this->session";
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}
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function build_multipart_url($hash, $documentId) {
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// return '@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@';
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return $this->multipart_download_url . "?code=$hash&d=$documentId&u=$this->session";
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}
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/**
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* This starts a download.
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*
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* @access public
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*/
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function download($document_id, $hash, $version = null, $apptype = 'ws')
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{
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$sql = "SELECT 1 FROM download_files WHERE hash=? AND session=? AND document_id=?";
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$rows = DBUtil::getResultArray(array($sql, array($hash, $this->session, $document_id)));
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if (PEAR::isError($rows))
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{
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return $rows;
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}
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if (count($rows) == 0)
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{
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return new PEAR_Error('Invalid session.');
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}
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// If document is being downloaded by an external user bypass the session checking
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$check = strstr($this->session, 'ktext_'.$document_id);
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if($check == 0 && $check !== false){
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// Use external download function
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return $this->download_ext($document_id, $hash, $version = null);
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}
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$storage =& KTStorageManagerUtil::getSingleton();
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$ktapi = &new KTAPI();
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$res = $ktapi->get_active_session($this->session, null, $apptype);
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if (PEAR::isError($res))
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{
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return $res;
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}
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$document = $ktapi->get_document_by_id($document_id);
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if (PEAR::isError($document))
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{
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return $document;
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}
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if (!empty($version))
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{
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$version = KTDocumentContentVersion::get($version);
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$res = $storage->downloadVersion($document->document, $version);
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}
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else
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{
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$res = $storage->download($document->document);
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}
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if (PEAR::isError($res))
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{
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return $res;
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}
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$sql = "DELETE FROM download_files WHERE hash='$hash' AND session='$this->session' AND document_id=$document_id";
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$result = DBUtil::runQuery($sql);
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return true;
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}
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function download_ext($document_id, $hash, $version = null)
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{
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$storage =& KTStorageManagerUtil::getSingleton();
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$document = Document::get($document_id);
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if (PEAR::isError($document))
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{
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return $document;
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}
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if (!empty($version))
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{
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$version = KTDocumentContentVersion::get($version);
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$res = $storage->downloadVersion($document, $version);
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}
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else
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{
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$res = $storage->download($document);
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}
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if (PEAR::isError($res))
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{
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return $res;
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}
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$sql = "DELETE FROM download_files WHERE hash='$hash' AND session='$this->session' AND document_id=$document_id";
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$result = DBUtil::runQuery($sql);
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return true;
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}
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/**
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* This will remove any temporary files that have not been dealt with in the correct timeframe.
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*
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* @access public
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*/
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function cleanup()
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{
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list($year,$mon,$day,$hour, $min) = explode(':', date('Y:m:d:H:i'));
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$expirydate = date('Y-m-d H:i:s', mktime($hour, $min - $this->age, 0, $mon, $day, $year));
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$sql = "DELETE FROM download_files WHERE download_date<'$expirydate'";
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DBUtil::runQuery($sql);
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}
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}
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?>
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