ondiskpathstoragemanager.inc.php
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<?php
/**
* $Id$
*
* Provides storage for contents of documents on disk, using the same
* path on-disk as in the repository.
*
* WARNING:
*
* This storage manager is _not_ transaction-safe, as on-disk paths need
* to update when the repository position changes, and this operation
* and the repository change in combination can't be atomic, even if
* they individually are.
*
* Copyright (c) 2005 Jam Warehouse http://www.jamwarehouse.com
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* @version $Revision$
* @author Neil Blakey-Milner, Jam Warehouse (Pty) Ltd, South Africa
*/
require_once(KT_LIB_DIR . '/storage/storagemanager.inc.php');
require_once(KT_LIB_DIR . '/mime.inc.php');
// used for well-known MIME deterministic techniques
if (!extension_loaded('fileinfo')) {
@dl('fileinfo.' . PHP_SHLIB_SUFFIX);
}
class KTOnDiskPathStorageManager extends KTStorageManager {
function upload(&$oDocument, $sTmpFilePath) {
$oConfig =& KTConfig::getSingleton();
$sStoragePath = $this->generateStoragePath($oDocument);
$this->setPath($oDocument, $sStoragePath);
$oDocument->setFileSize(filesize($sTmpFilePath));
$sDocumentFileSystemPath = sprintf("%s/%s", $oConfig->get('urls/documentRoot'), $this->getPath($oDocument));
//copy the file accross
if (copy($sTmpFilePath, $sDocumentFileSystemPath)) {
//remove the temporary file
unlink($sTmpFilePath);
if (file_exists($sDocumentFileSystemPath)) {
return true;
} else {
return false;
}
} else {
return false;
}
}
function getPath(&$oDocument) {
return $oDocument->getStoragePath();
}
function setPath(&$oDocument, $sNewPath) {
$oDocument->setStoragePath($sNewPath);
}
function generateStoragePath(&$oDocument) {
$sStoragePath = sprintf("%s/%s", Document::_generateFolderPath($oDocument->getFolderID()), $oDocument->getFileName());
return $sStoragePath;
}
function temporaryFile(&$oDocument) {
$oConfig =& KTConfig::getSingleton();
return sprintf("%s/%s", $oConfig->get('urls/documentRoot'), $this->getPath($oDocument));
}
function freeTemporaryFile($sPath) {
return;
}
function download($oDocument) {
//get the path to the document on the server
$oConfig =& KTConfig::getSingleton();
$sPath = sprintf("%s/%s", $oConfig->get('urls/documentRoot'), $this->getPath($oDocument));
if (file_exists($sPath)) {
//set the correct headers
header("Content-Type: " .
KTMime::getMimeTypeName($oDocument->getMimeTypeID()));
header("Content-Length: ". $oDocument->getFileSize());
header("Content-Disposition: attachment; filename=\"" . $oDocument->getFileName() . "\"");
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: must-revalidate");
header("Content-Location: ".$oDocument->getFileName());
readfile($sPath);
} else {
return false;
}
}
function createFolder($oFolder) {
$oConfig =& KTConfig::getSingleton();
$sPath = sprintf("%s/%s", $oConfig->get('urls/documentRoot'), $oFolder->generateFolderPath($oFolder->getID()));
if (file_exists($sPath)) {
return PEAR::raiseError("Path already exists");
}
$res = @mkdir($sPath, 0755);
if ($res === false) {
return PEAR::raiseError("Couldn't create folder");
}
return true;
}
function downloadVersion($oDocumentID, $sVersion) {
//get the document
$sDocumentFileSystemPath = $oDocument->getPath() . "-$sVersion";
if (file_exists($sDocumentFileSystemPath)) {
//set the correct headers
header("Content-Type: " .
KTMime::getMimeTypeName($oDocument->getMimeTypeID()));
header("Content-Length: ". filesize($sDocumentFileSystemPath));
// prefix the filename presented to the browser to preserve the document extension
header('Content-Disposition: attachment; filename="' . "$sVersion-" . $oDocument->getFileName() . '"');
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: must-revalidate");
header("Content-Location: ".$oDocument->getFileName());
readfile($sDocumentFileSystemPath);
} else {
return false;
}
}
/**
* Move a document to a new folder
*
* By the time we are called, the document believes it is in the new
* location in terms of its folder_id and paths. Just in case, we
* avoid using generateStoragePath and rely on the folder objects
* for our paths.
*
* We have to use the folders for our source and destination paths,
* and then set storage_path.
*
* return boolean true on successful move, false otherwhise
*/
function moveDocument(&$oDocument, $oSourceFolder, $oDestinationFolder) {
global $default;
$oConfig =& KTConfig::getSingleton();
$sCurrentPath = sprintf("%s/%s/%s", $oConfig->get('urls/documentRoot'), Document::_generateFolderPath($oSourceFolder->getID()), $oDocument->getFileName());
$sDestinationPath = sprintf("%s/%s/%s", $oConfig->get('urls/documentRoot'), Document::_generateFolderPath($oDestinationFolder->getID()), $oDocument->getFileName());
// find all the previous versions of this document and move them
// ie. interrogate transaction history for all CHECKIN transactions and retrieve the versions
// FIXME: refactor array getOldVersionPaths($iDocumentID)??
$sql = $default->db;
$sQuery = "SELECT DISTINCT version FROM $default->document_transactions_table WHERE document_id = ? AND transaction_id = ?";/*ok*/
$aParams = array($oDocument->getID(), CHECKOUT);
$result = $sql->query(array($sQuery, $aParams));
if (!$result) {
$default->log->error("KTOnDiskPathStorageManager->moveDocument error looking up document versions, id=" . $oDocument->getID());
}
while ($sql->next_record()) {
$sVersion = $sql->f("version");
if ($sVersion <> $oDocument->getVersion()) {
$sSourcePath = $sCurrentPath . "-" . $sVersion;
$sDestinationPath = $sDestinationPath . "-" . $sVersion;
// move it to the new folder
$default->log->info("KTOnDiskPathStorageManager->moveDocument moving $sSourcePath to $sDestinationPath");
$res = KTUtil::moveFile($sSourcePath, $sDestinationPath);
if (PEAR::isError($res)) {
// FIXME: can't bail now since we don't have transactions- so we doggedly continue deleting and logging errors
$default->log->error("KTOnDiskPathStorageManager->moveDocument error moving $sSourcePath to $sDestinationPath; documentID=" . $oDocument->getID() . "; folderID=" . $oFolder->getID());
}
}
}
// now move the current version
$res = KTUtil::moveFile($sCurrentPath, $sDestinationPath);
if (PEAR::isError($res)) {
$default->log->error("KTOnDiskPathStorageManager->moveDocument couldn't move $sCurrentPath to $sDestinationPath, documentID=" . $oDocument->getID());
return $res;
}
$sStoragePath = sprintf("%s/%s", Document::_generateFolderPath($oDestinationFolder->getID()), $oDocument->getFileName());
$this->setPath($oDocument, $sStoragePath);
return true;
}
/**
* Move a file
*
* @param string source path
* @param string destination path
*/
function move($sOldDocumentPath, $sNewDocumentPath) {
global $default;
if (file_exists($sOldDocumentPath)) {
//copy the file to the new destination
if (copy($sOldDocumentPath, $sNewDocumentPath)) {
//delete the old one
unlink($sOldDocumentPath);
return true;
} else {
return false;
}
} else {
return false;
}
}
function moveFolder($oFolder, $oDestFolder) {
$table = "documents";
$sQuery = "UPDATE $table SET storage_path = CONCAT(?, SUBSTRING(storage_path FROM ?)) WHERE storage_path LIKE ?";
$aParams = array(
sprintf("%s/%s", $oDestFolder->getFullPath(), $oDestFolder->getName()),
strlen($oFolder->getFullPath()) + 1,
sprintf("%s/%s%%", $oFolder->getFullPath(), $oFolder->getName()),
);
$res = DBUtil::runQuery(array($sQuery, $aParams));
if (PEAR::isError($res)) {
return $res;
}
$oConfig =& KTConfig::getSingleton();
$sSrc = sprintf("%s/%s/%s",
$oConfig->get('urls/documentRoot'),
$oFolder->getFullPath(),
$oFolder->getName()
);
$sDst = sprintf("%s/%s/%s/%s",
$oConfig->get('urls/documentRoot'),
$oDestFolder->getFullPath(),
$oDestFolder->getName(),
$oFolder->getName()
);
return KTUtil::moveDirectory($sSrc, $sDst);
}
/**
* Deletes a document- moves it to the Deleted/ folder
*
* return boolean true on successful move, false otherwhise
*/
function delete($oDocument) {
global $default;
// current document path
$sCurrentPath = $oDocument->getPath();
// check if the deleted folder exists and create it if not
$sDeletedPrefix = $default->documentRoot . "/Deleted";
if (!file_exists($sDeletedPrefix)) {
mkdir($sDeletedPrefix, 0755);
}
// move the file to the deleted folder, prefixed by its document id
$sDeletedPrefix = $default->documentRoot . "/Deleted/" . $oDocument->getID() . "-" . $oDocument->getFileName();
// find all the previous versions of this document and move them
// ie. interrogate transaction history for all CHECKIN transactions and retrieve the versions
// FIXME: refactor
$sql = $default->db;
$sQuery = "SELECT DISTINCT version FROM $default->document_transactions_table WHERE document_id = ? AND transaction_id = ?";/*ok*/
$aParams = array($oDocument->getID(), CHECKOUT);
$result = $sql->query(array($sQuery, $aParams));
if ($result) {
while ($sql->next_record()) {
$sVersion = $sql->f("version");
if ($sVersion <> $oDocument->getVersion()) {
$sVersionedPath = $sCurrentPath . "-" . $sVersion;
$sDeletedPath = $sDeletedPrefix . "-" . $sVersion;
// move it to the deleted folder
$default->log->info("PhysicalDocumentManager::delete moving $sVersionedPath to $sDeletedPath");
if (!PhysicalDocumentManager::move($sVersionedPath, $sDeletedPath)) {
$default->log->error("PhysicalDocumentManager::delete error moving $sVersionedPath to $sDeletedPath; documentID=" . $oDocument->getID());
// FIXME: can't bail now since we don't have transactions- so we doggedly continue deleting and logging errors
}
}
}
} else {
$default->log->error("PhysicalDocumentManager::delete error looking up document versions, id=" . $oDocument->getID());
}
// now move the current version
if (PhysicalDocumentManager::move($sCurrentPath, $sDeletedPrefix)) {
return true;
} else {
$default->log->error("PhysicalDocumentManager::delete couldn't move $sCurrentPath to $sDeletedPath, documentID=" . $oDocument->getID());
return false;
}
}
/**
* Completely remove a document from the Deleted/ folder
*
* return boolean true on successful move, false otherwhise
*/
function expunge($oDocument) {
global $default;
// deleted document path
$sDeletedPrefix = $default->documentRoot . "/Deleted/" . $oDocument->getID() . "-" . $oDocument->getFileName();
// find all the previous versions of this document and delete them
// ie. interrogate transaction history for all CHECKIN transactions and retrieve the versions
// FIXME: refactor
$sql = $default->db;
$sQuery = "SELECT DISTINCT version FROM $default->document_transactions_table WHERE document_id = ? AND transaction_id = ?";/*ok*/
$aParams = array($oDocument->getID(), CHECKOUT);
$result = $sql->query(array($sQuery, $aParams));
if ($result) {
while ($sql->next_record()) {
$sVersion = $sql->f("version");
if ($sVersion <> $oDocument->getVersion()) {
$sExpungePath = $sDeletedPrefix . "-" . $sVersion;
// zap it
$default->log->info("PhysicalDocumentManager::expunge rm'ing $sExpungePath");
if (file_exists($sExpungePath)) {
if (!unlink($sExpungePath)) {
$default->log->error("PhysicalDocumentManager::expunge error deleting $sExpungePath; documentID=" . $oDocument->getID());
// FIXME: can't bail now since we don't have transactions- so we doggedly continue deleting and logging errors
}
} else {
$default->log->error("PhysicalDocumentManager::expunge can't rm $sExpungePath because it doesn't exist");
}
}
}
} else {
$default->log->error("PhysicalDocumentManager::expunge error looking up document versions, id=" . $oDocument->getID());
}
if (file_exists($sDeletedPrefix)) {
// now delete the current version
if (unlink($sDeletedPrefix)) {
$default->log->info("PhysicalDocumentManager::expunge unlinkied $sDeletedPrefix");
return true;
} else {
$default->log->info("PhysicalDocumentManager::expunge couldn't unlink $sDeletedPrefix");
if (file_exists($sDeletedPrefix)) {
return false;
} else {
return true;
}
}
} else {
$default->log->info("PhysicalDocumentManager::expunge can't rm $sDeletedPrefix because it doesn't exist");
return true;
}
}
/**
* Restore a document from the Deleted/ folder to the specified folder
*
* return boolean true on successful move, false otherwhise
*/
function restore($oDocument) {
global $default;
// deleted document path (includes previous versions)
$sDeletedPath = $default->documentRoot . "/Deleted/" . $oDocument->getID() . "-" . $oDocument->getFileName();
// build the path to the new folder
$sRestorePath = Folder::getFolderPath($oDocument->getFolderID()) . "/" . $oDocument->getFileName();
// find all the previous versions of this document and move them
// ie. interrogate transaction history for all CHECKIN transactions and retrieve the versions
// FIXME: refactor
$sql = $default->db;
$sQuery = "SELECT DISTINCT version FROM $default->document_transactions_table WHERE document_id = ? AND transaction_id = ?";/*ok*/
$aParams = array($oDocument->getID(), CHECKOUT);
$result = $sql->query(array($sQuery, $aParams));
if ($result) {
while ($sql->next_record()) {
$sVersion = $sql->f("version");
if ($sVersion <> $oDocument->getVersion()) {
$sVersionedDeletedPath = $sDeletedPath . "-" . $sVersion;
$sVersionedRestorePath = $sRestorePath . "-" . $sVersion;
// move it to the new folder
$default->log->info("PhysicalDocumentManager::restore moving $sVersionedDeletedPath to $sVersionedRestorePath");
if (!PhysicalDocumentManager::move($sVersionedDeletedPath, $sVersionedRestorePath)) {
$default->log->error("PhysicalDocumentManager::restore error moving $sVersionedDeletedPath to $sVersionedRestorePath; documentID=" . $oDocument->getID());
// FIXME: can't bail now since we don't have transactions- so we doggedly continue restoring and logging errors
}
}
}
} else {
$default->log->error("PhysicalDocumentManager::expunge error looking up document versions, id=" . $oDocument->getID());
}
// now move the current version
if (PhysicalDocumentManager::move($sDeletedPath, $sRestorePath)) {
return true;
} else {
$default->log->error("PhysicalDocumentManager::restore couldn't move $sDeletedPath to $sRestorePath, documentID=" . $oDocument->getID());
return false;
}
}
/**
* View a document using an inline viewer
*
* @param Primary key of document to view
*
* @return int number of bytes read from file on success or false otherwise;
*
* @todo investigate possible problem in MSIE 5.5 concerning Content-Disposition header
*/
function inlineViewPhysicalDocument($iDocumentID) {
//get the document
$oDocument = & Document::get($iDocumentID);
//get the path to the document on the server
$sDocumentFileSystemPath = $oDocument->getPath();
if (file_exists($sDocumentFileSystemPath)) {
header("Content-Type: application/octet-stream");
header("Content-Length: ". $oDocument->getFileSize());
// prefix the filename presented to the browser to preserve the document extension
header('Content-Disposition: inline; filename="' . $oDocument->getFileName() . '"');
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: must-revalidate");
header("Content-Location: ".$oDocument->getFileName());
return readfile($sDocumentFileSystemPath);
} else {
return false;
}
}
/**
* Get the uploaded file information and place it into a document object
*
* @param Array containing uploaded file information (use $aFileArray)
* par Primary key of folder into which document will be placed
*
* @return Document Document object containing uploaded file information
*/
function & createDocumentFromUploadedFile($aFileArray, $iFolderID) {
//get the uploaded document information and put it into a document object
$oDocument = & new Document($aFileArray['name'], $aFileArray['name'], $aFileArray['size'], $_SESSION["userID"], PhysicalDocumentManager::getMimeTypeID($aFileArray['type'], $aFileArray['name']), $iFolderID);
return $oDocument;
}
}
?>