browseutil.inc.php
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<?php
/* vim: set expandtab tabstop=4 shiftwidth=4 foldmethod=marker: */
/**
* $Id$
*
* Utilities helpful to traversing the document repository
*
* 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; using version 2 of the License.
*
*
* 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 <nbm@jamwarehouse.com>, Jam Warehouse (Pty) Ltd, South Africa
* @package lib.browse
*/
require_once(KT_LIB_DIR . '/actions/documentaction.inc.php');
class KTBrowseUtil {
// {{{ folderOrDocument
function folderOrDocument($sPath, $bAction = false) {
$sFileName = basename($sPath);
$sFolderPath = dirname($sPath);
$aFolderInfo = KTBrowseUtil::_folderOrDocument($sFolderPath);
if ($aFolderInfo === false) {
return $aFolderInfo;
}
list($iFolderID, $iDocumentID) = $aFolderInfo;
if ($iDocumentID && $bAction) {
$aActions = array_keys(KTDocumentActionUtil::getAllDocumentActions());
if (in_array($sFileName, $aActions)) {
return array($iFolderID, $iDocumentID, $sFileName);
}
return false;
}
$sQuery = "SELECT id FROM folders WHERE parent_id = ? AND name = ?";
$aParams = array($iFolderID, $sFileName);
$id = DBUtil::getOneResultKey(array($sQuery, $aParams), 'id');
if (PEAR::isError($id)) {
// XXX: log error
return false;
}
if ($id) {
return array($id, null, null);
}
$sQuery = sprintf("SELECT d.id FROM %s AS d" .
" LEFT JOIN %s AS dm ON (d.metadata_version_id = dm.id) LEFT JOIN %s AS dc ON (dm.content_version_id = dc.id)" .
" WHERE d.folder_id = ? AND dc.filename = ?",
KTUtil::getTableName(documents),
KTUtil::getTableName('document_metadata_version'),
KTUtil::getTableName('document_content_version'));
$aParams = array($iFolderID, $sFileName);
$iDocumentID = DBUtil::getOneResultKey(array($sQuery, $aParams), 'id');
if (PEAR::isError($iDocumentID)) {
// XXX: log error
return false;
}
if ($iDocumentID) {
return array($iFolderID, $iDocumentID, null);
}
if ($bAction) {
// $aActions = array_keys(KTFolderAction::getFolderActions());
$aActions = array('ktcore.delete');
if (in_array($sFileName, $aActions)) {
return array($iFolderID, null, $sFileName);
}
}
return false;
}
function _folderOrDocument($sPath) {
global $default;
$sFileName = basename($sPath);
$sFolderPath = dirname($sPath);
$aFolderNames = split('/', $sFolderPath);
$iFolderID = 0;
$aRemaining = $aFolderNames;
while (count($aRemaining)) {
$sFolderName = $aRemaining[0];
$aRemaining = array_slice($aRemaining, 1);
if ($sFolderName === "") {
continue;
}
$sQuery = "SELECT id FROM folders WHERE parent_id = ? AND name = ?";
$aParams = array($iFolderID, $sFolderName);
$id = DBUtil::getOneResultKey(array($sQuery, $aParams), 'id');
if (PEAR::isError($id)) {
// XXX: log error
return false;
}
if (is_null($id)) {
// Some intermediary folder path doesn't exist
return false;
}
$default->log->error("iFolderID set to " . print_r($id, true));
$iFolderID = (int)$id;
}
$sQuery = sprintf("SELECT d.id FROM %s AS d" .
" LEFT JOIN %s AS dm ON (d.metadata_version_id = dm.id) LEFT JOIN %s AS dc ON (dm.content_version_id = dc.id)" .
" WHERE d.folder_id = ? AND dc.filename = ?",
KTUtil::getTableName(documents),
KTUtil::getTableName('document_metadata_version'),
KTUtil::getTableName('document_content_version'));
$aParams = array($iFolderID, $sFileName);
$iDocumentID = DBUtil::getOneResultKey(array($sQuery, $aParams), 'id');
if (PEAR::isError($iDocumentID)) {
// XXX: log error
return false;
}
if ($iDocumentID === null) {
$sQuery = "SELECT id FROM folders WHERE parent_id = ? AND name = ?";
$aParams = array($iFolderID, $sFileName);
$id = DBUtil::getOneResultKey(array($sQuery, $aParams), 'id');
if (PEAR::isError($id)) {
// XXX: log error
return false;
}
if (is_null($id)) {
if ($sFileName === "") {
return array($iFolderID, null);
}
// XXX: log error
return array($iFolderID, false);
}
return array($id, null);
}
return array($iFolderID, (int)$iDocumentID);
}
// }}}
// {{{ breadcrumbsForFolder
function breadcrumbsForFolder($oFolder, $aOptions = null) {
$oFolder =& KTUtil::getObject('Folder', $oFolder);
$sAction = KTUtil::arrayGet($aOptions, 'folderaction');
if(PEAR::isError($oFolder)) {
$url = KTUtil::addQueryStringSelf("fFolderId=1");
if(!empty($sAction)) {
$url = generateControllerUrl($sAction, "fFolderId=1");
}
return array( array( 'url'=> $url, 'name' => '…'));
}
$bFinal = KTUtil::arrayGet($aOptions, 'final', true, false);
$bFolderBrowseBase = KTUtil::arrayGet($aOptions, 'folderbase', "");
$aBreadcrumbs = array();
// skip root.
$folder_path_names = array_slice($oFolder->getPathArray(), 1);
$folder_path_ids = array_slice(explode(',', $oFolder->getParentFolderIds()), 1);
$parents = count($folder_path_ids);
// we have made the "default" folder non-root, so we need to be able
// to reach "Root" (Folder::get(1)).
$url = KTUtil::addQueryStringSelf("fFolderId=1");
if (!empty($sAction)) {
$url = generateControllerUrl($sAction, "fFolderId=1");
}
$aBreadcrumbs[] = array("url" => $url, "name" => _kt('Folders'));
$oUser = User::get($_SESSION['userID']);
if ($parents != 0) {
foreach (range(0, $parents - 1) as $index) {
$id = $folder_path_ids[$index];
$oThisFolder = Folder::get($id);
if (!KTPermissionUtil::userHasPermissionOnItem($oUser, 'ktcore.permissions.read', $oThisFolder)) {
$aBreadcrumbs[] = array('name' => '...');
continue;
}
$url = KTUtil::addQueryStringSelf("fFolderId=" . $id);
if (!empty($sAction)) {
$url = generateControllerUrl($sAction, "fFolderId=" . $id);
}
$aBreadcrumbs[] = array("url" => $url, "name" => $folder_path_names[$index]);
}
}
// now add this folder, _if we aren't in 1_.
if ($oFolder->getId() != 1) {
if (!KTPermissionUtil::userHasPermissionOnItem($oUser, 'ktcore.permissions.read', $oFolder)) {
$aBreadcrumbs[] = array('name' => '...');
} else if ($bFinal) {
$aBreadcrumbs[] = array("name" => $oFolder->getName());
} else {
$id = $oFolder->getId();
$url = KTUtil::addQueryStringSelf("fFolderId=" . $id);
if (!empty($sAction)) {
$url = generateControllerUrl($sAction, "fFolderId=" . $id);
}
$aBreadcrumbs[] = array("url" => $url, "name" => $oFolder->getName());
}
}
$aCompactBreadcrumbs = array();
$lastdotdotdot = false;
foreach ($aBreadcrumbs as $aBreadcrumb) {
if ($aBreadcrumb['name'] == '...') {
if ($lastdotdotdot == true) {
continue;
}
$lastdotdotdot = true;
} else {
$lastdotdotdot = false;
}
$aCompactBreadcrumbs[] = $aBreadcrumb;
}
return $aCompactBreadcrumbs;
}
// }}}
// {{{ breadcrumbsForDocument
function breadcrumbsForDocument($oDocument, $aOptions = null) {
$bFinal = KTUtil::arrayGet($aOptions, 'final', true, false);
$aOptions = KTUtil::meldOptions($aOptions, array(
"final" => false,
));
$iFolderId = $oDocument->getFolderId();
$aBreadcrumbs = KTBrowseUtil::breadcrumbsForFolder($iFolderId, $aOptions);
$sAction = KTUtil::arrayGet($aOptions, 'documentaction');
$url = KTUtil::addQueryStringSelf("fDocumentId=" . $oDocument->getId());
if (!empty($sAction)) {
$url = generateControllerUrl($sAction, "fDocumentId=" . $oDocument->getId());
}
if ($bFinal) {
$aBreadcrumbs[] = array("name" => $oDocument->getName());
} else {
$aBreadcrumbs[] = array("url" => $url, "name" => $oDocument->getName());
}
return $aBreadcrumbs;
}
// }}}
// {{{ getUrlForFolder
function getUrlForFolder($oFolder) {
$iFolderId = KTUtil::getId($oFolder);
$sExt = ".php";
if (KTUtil::arrayGet($_SERVER, 'kt_no_extensions')) {
$sExt = "";
}
return sprintf("%s/browse%s?fFolderId=%d", $GLOBALS['KTRootUrl'], $sExt, $iFolderId);
}
// }}}
// {{{ getUrlForDocument
function getUrlForDocument($oDocument) {
$iDocumentId = KTUtil::getId($oDocument);
$sExt = ".php";
if (KTUtil::arrayGet($_SERVER, 'kt_no_extensions')) {
$sExt = "";
}
return sprintf("%s/view%s?fDocumentId=%d", $GLOBALS['KTRootUrl'], $sExt, $iDocumentId);
}
// }}}
// {{{ getBrowseBaseUrl
function getBrowseBaseUrl() {
$sExt = ".php";
if (KTUtil::arrayGet($_SERVER, 'kt_no_extensions')) {
$sExt = "";
}
return sprintf("%s/browse%s", $GLOBALS['KTRootUrl'], $sExt);
}
// }}}
// {{{ getViewBaseUrl
function getViewBaseUrl() {
$sExt = ".php";
if (KTUtil::arrayGet($_SERVER, 'kt_no_extensions')) {
$sExt = "";
}
return sprintf("%s/view%s", $GLOBALS['KTRootUrl'], $sExt);
}
// }}}
// {{{ inAdminMode
/**
* Determines whether the user is in administrator mode, including
* whether the user is in the unit for which it is unit
* administrator.
*/
function inAdminMode($oUser, $oFolder) {
if (KTUtil::arrayGet($_SESSION, 'adminmode', false) !== true) {
return false;
}
if (Permission::userIsSystemAdministrator($oUser)) {
return true;
}
return Permission::isUnitAdministratorForFolder($oUser, $oFolder);
}
// }}}
// {{{ getBrowseableFolders
/**
* Finds folders that aren't reachable by the user but to which the
* user has read permissions.
*
* Returns an array of Folder objects.
*/
function getBrowseableFolders($oUser) {
$aPermissionDescriptors = KTPermissionUtil::getPermissionDescriptorsForUser($oUser);
if (empty($aPermissionDescriptors)) {
return array();
}
$sPermissionDescriptors = DBUtil::paramArray($aPermissionDescriptors);
$sFoldersTable = KTUtil::getTableName('folders');
$sPLTable = KTUtil::getTableName('permission_lookups');
$sPLATable = KTUtil::getTableName('permission_lookup_assignments');
$oPermission = KTPermission::getByName('ktcore.permissions.read');
$sQuery = "SELECT DISTINCT F.id AS id FROM
$sFoldersTable AS F
LEFT JOIN $sPLTable AS PL ON F.permission_lookup_id = PL.id LEFT JOIN $sPLATable AS PLA ON PLA.permission_lookup_id = PL.id AND PLA.permission_id = ?
LEFT JOIN $sFoldersTable AS F2 ON F.parent_id = F2.id
LEFT JOIN $sPLTable AS PL2 ON F2.permission_lookup_id = PL2.id LEFT JOIN $sPLATable AS PLA2 ON PLA2.permission_lookup_id = PL2.id AND PLA2.permission_id = ?
WHERE
PLA.permission_descriptor_id IN ($sPermissionDescriptors)
AND F2.id <> 1
AND NOT (PLA2.permission_descriptor_id IN ($sPermissionDescriptors))";
$aParams = kt_array_merge(array($oPermission->getId(), $oPermission->getId()), $aPermissionDescriptors, $aPermissionDescriptors);
$res = DBUtil::getResultArrayKey(array($sQuery, $aParams), 'id');
if (PEAR::isError($res)) {
return $res;
}
$aFolders = array();
foreach ($res as $iFolderId) {
$aFolders[] = Folder::get($iFolderId);
}
return $aFolders;
}
// }}}
}