Peter M. Groen / knowledgetree

<?php
/**
 * $Id$
 *
 * Contains the business logic required to build the bulk uploadpage.
 * Will use bulkUploadUI.inc for presentation logic
 *
 * Expected form variable:
 * o $fFolderID - primary key of folder user is currently browsing
 *
 * 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 Adam Monsen
 * @package documentmanagement
 */

require_once("../../../../config/dmsDefaults.php");

KTUTil::extractGPC('fDocumentTypeID', 'fFolderID', 'fStore');

if (!checkSession()) {
    die("Session check failed");
}

require_once("$default->fileSystemRoot/lib/database/datetime.inc");
require_once("$default->fileSystemRoot/lib/documentmanagement/BulkUploadManager.inc");
require_once("$default->fileSystemRoot/lib/documentmanagement/Document.inc");
require_once("$default->fileSystemRoot/lib/documentmanagement/DocumentTransaction.inc");
require_once("$default->fileSystemRoot/lib/security/Permission.inc");
require_once("$default->fileSystemRoot/lib/subscriptions/SubscriptionEngine.inc");
require_once("$default->fileSystemRoot/lib/visualpatterns/PatternCustom.inc");
require_once("$default->fileSystemRoot/lib/visualpatterns/PatternMetaData.inc");
require_once("$default->fileSystemRoot/lib/visualpatterns/PatternEditableTableSqlQuery.inc");
require_once("$default->fileSystemRoot/presentation/lookAndFeel/knowledgeTree/foldermanagement/folderUI.inc");
require_once("$default->fileSystemRoot/presentation/Html.inc");
require_once("$default->fileSystemRoot/presentation/webpageTemplate.inc");
require_once("bulkUploadUI.inc");

require_once(KT_LIB_DIR . '/foldermanagement/Folder.inc');
require_once(KT_LIB_DIR . '/users/User.inc');

require_once(KT_LIB_DIR . '/import/bulkimport.inc.php');
require_once(KT_LIB_DIR . '/import/zipimportstorage.inc.php');

$oPatternCustom = & new PatternCustom();

/* CHECK: system has required features to handle bulk upload */
/*
if (!BulkUploadManager::isBulkUploadCapable()) {
    // can't do bulk uploading
    $sErrorMessage = _("This system is not capable of handling bulk uploads") . ". <br/>\n"
        . _("Please contact your system administrator") . "<br />\n"
        . getCancelButton($fFolderID);
    $main->setErrorMessage($sErrorMessage);
    $main->setCentralPayload($oPatternCustom);
    $main->render();
    exit(0);
}
*/

$postExpected = KTUtil::arrayGet($_REQUEST, "postExpected");
$postReceived = KTUtil::arrayGet($_REQUEST, "postReceived");
if (!is_null($postExpected) && is_null($postReceived)) {
    // A post was to be initiated by the client, but none was received.
    // This means post_max_size was violated.
    require_once("$default->fileSystemRoot/presentation/webpageTemplate.inc");
    $oPatternCustom = & new PatternCustom();
    $errorMessage = _("You tried to upload a file that is larger than the PHP post_max_size setting.");
    $oPatternCustom->setHtml("<font color=\"red\">" . $errorMessage . "</font><br /><a href=\"$default->rootUrl/control.php?action=browse&fFolderID=$fFolderID\"><img src=\"" . KTHtml::getCancelButton() . "\" border=\"0\"></a>");
    $main->setCentralPayload($oPatternCustom);
    $main->render();
    exit(0);
}

/* CHECK: folder ID passed in */
if (isset($fFolderID)) {
    $oFolder = Folder::get($fFolderID);
} else {
    // no folder id was set when coming to this page,
    // so display an error message
    $sErrorMessage = _("You haven't selected a folder to bulk upload to") . ".";
    $main->setErrorMessage($sErrorMessage);
    $main->setCentralPayload($oPatternCustom);
    $main->render();
    exit(0);
}

/* CHECK: user has write perms for current folder */
if (!Permission::userHasFolderWritePermission($oFolder)) {
    // user does not have write permission for this folder
    $sErrorMessage = getCancelButton($fFolderID)
        . _("You do not have permission to add a document to this folder") . ".";
    $main->setErrorMessage($sErrorMessage);
    $main->setCentralPayload($oPatternCustom);
    $main->render();
    exit(0);
}

/* CHECK: user selected a document type */
if (!$fDocumentTypeID) {
    // show document type chooser form
    $oPatternCustom->setHtml(getChooseDocumentTypePage($fFolderID));
    $main->setFormAction($_SERVER["PHP_SELF"]);
    $main->setErrorMessage($sErrorMessage);
    $main->setCentralPayload($oPatternCustom);
    $main->render();
    exit(0);
}

/* CHECK: user submitted a file for upload */
if (!$fStore) {
    // show upload/metatdata form
    $oPatternCustom->setHtml(getPage($fFolderID, $fDocumentTypeID));
    $main->setFormAction($_SERVER["PHP_SELF"] .  "?postExpected=1&fFolderID=$fFolderID");
    $main->setFormEncType("multipart/form-data");
    $main->setHasRequiredFields(true);
    $main->setErrorMessage($sErrorMessage);
    $main->setCentralPayload($oPatternCustom);
    $main->render();
    exit(0);
}

// make sure the user actually selected a file first
// and that something was uploaded
if (!((strlen($_FILES['fFile']['name']) > 0) && $_FILES['fFile']['size'] > 0)) {
    // no uploaded file
    require_once("$default->fileSystemRoot/presentation/webpageTemplate.inc");
    $oPatternCustom = & new PatternCustom();
    $message = _("You did not select a valid document to upload");

    $errors = array(
       1 => _("The uploaded file is larger than the PHP upload_max_filesize setting"),
       2 => _("The uploaded file is larger than the MAX_FILE_SIZE directive that was specified in the HTML form"),
       3 => _("The uploaded file was not fully uploaded to KnowledgeTree"),
       4 => _("No file was selected to be uploaded to KnowledgeTree"),
       6 => _("An internal error occurred receiving the uploaded document"),
    );
    $message = KTUtil::arrayGet($errors, $_FILES['fFile']['error'], $message);

    if (@ini_get("file_uploads") == false) {
        $message = _("File uploads are disabled in your PHP configuration");
    }

    $oPatternCustom->setHtml(getPage($fFolderID, $fDocumentTypeID));
    $main->setFormAction($_SERVER["PHP_SELF"]);
    $main->setFormEncType("multipart/form-data");
    $main->setHasRequiredFields(true);
    $main->setErrorMessage($message);
    $main->setCentralPayload($oPatternCustom);
    $main->render();
    exit(0);
}

// if changing this function, also change related error message
function isValidBulkUpload() {
    return (strlen($_FILES['fFile']['name']) > 0)
      && file_exists($_FILES['fFile']['tmp_name'])
      && $_FILES['fFile']['size'] > 0
      && (!$_FILES['fFile']['error'])
      && preg_match('/\.zip/i', $_FILES['fFile']['name']);
}

/* CHECK: bulk upload is valid */
if (!isValidBulkUpload()) {
    $sErrorMessage = getInvalidBulkUploadErrorMsg() . getRetryUploadButton($fFolderID, $fDocumentTypeID);
    $oPatternCustom->setHtml(getPage($fFolderID, $fDocumentTypeID));
    $main->setFormAction($_SERVER["PHP_SELF"]);
    $main->setFormEncType("multipart/form-data");
    $main->setHasRequiredFields(true);
    $main->setErrorMessage($message);
    $main->setCentralPayload($oPatternCustom);
    $main->render();
    exit(0);
}

$matches = array();
$aFields = array();
foreach ($_REQUEST as $k => $v) {
    if (preg_match('/^emd(\d+)$/', $k, $matches)) {
        $aFields[] = array(DocumentField::get($matches[1]), $v);
    }
}
$aOptions = array(
    'metadata' => $aFields,
);

$fs =& new KTZipImportStorage($_FILES['fFile']['tmp_name']);
$oUser =& User::get($_SESSION['userID']);
$bm =& new KTBulkImportManager($oFolder, $fs, $oUser, $aOptions);

DBUtil::startTransaction();
$res = $bm->import();
if (PEAR::isError($res)) {
    DBUtil::rollback();
    $_SESSION["KTErrorMessage"][] = _("Bulk import failed") . ": " . $res->getMessage();
} else {
    DBUtil::commit();
}

controllerRedirect("browse", 'fFolderID=' . $oFolder->getID());

?>