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hedera-web-mindshore/rest/dms/add.php

113 lines
2.6 KiB
PHP

<?php
use Vn\Lib;
/**
* Adds a document to the Document Management System.
**/
class Add extends Vn\Web\JsonRequest
{
function run ($db)
{
// XXX: Uncomment only to test the script
//$_REQUEST['description'] = 'description';
$description = empty ($_REQUEST['description']) ?
NULL : $_REQUEST['description'];
$baseDir = _DATA_DIR .'/'. $this->app->getName ();
$docsDir = "$baseDir/dms";
$tempDir = "$baseDir/.dms";
$digXDir = 3;
$zerosDir = '';
for ($i = 0; $i < $digXDir; $i++)
$zerosDir .= '0';
// Checks document restrictions
if (empty ($_FILES['doc']['name']))
throw new Lib\UserException ('File not choosed');
$maxSize = $db->getValue ('SELECT max_size FROM dms_config');
if ($_FILES['doc']['size'] > $maxSize * 1048576)
throw new Lib\UserException (sprintf ('File size exceeds size: %d MB', $maxSize)));
try {
// Registers the document in the database
$db->query ('START TRANSACTION');
$db->query ('INSERT INTO dms_document SET description = #', [$description]);
$docId = (string) $db->getValue ('SELECT LAST_INSERT_ID()');
$len = strlen ($docId);
$neededLevels = ceil ($len / $digXDir) - 1;
$dirLevels = $db->getValue (
'SELECT dir_levels FROM dms_config LOCK IN SHARE MODE');
if ($dirLevels > $neededLevels)
$neededLevels = $dirLevels;
// Reorganizes the file repository if necessary
if ($dirLevels < $neededLevels)
$dirLevels = $db->getValue (
'SELECT dir_levels FROM dms_config FOR UPDATE');
if ($dirLevels < $neededLevels)
{
if (is_dir ($docsDir))
{
$dif = ($neededLevels - $dirLevels) - 1;
$newDir = $docsDir;
for ($i = 0; $i < $dif; $i++)
$newDir .= "/$zerosDir";
$success = rename ($docsDir, $tempDir)
&& mkdir ($newDir, 0770, TRUE)
&& rename ($tempDir, "$newDir/$zerosDir");
if (!$success)
throw new Exception ('Error while reorganizing directory tree');
}
$curLevels = $db->query ('UPDATE dms_config SET dir_levels = #',
[$neededLevels]);
}
// Saves the document to the repository
$padLen = ($neededLevels + 1) * $digXDir;
$paddedId = str_pad ($docId, $padLen, '0', STR_PAD_LEFT);
$saveDir = $docsDir;
for ($i = 0; $i < $neededLevels; $i++)
$saveDir .= '/'. substr ($paddedId, $i * $digXDir, $digXDir);
if (!file_exists ($saveDir))
mkdir ($saveDir, 0770, TRUE);
$savePath = "$saveDir/". substr ($paddedId, -$digXDir);
move_uploaded_file ($_FILES['doc']['tmp_name'], $savePath);
$db->query ('COMMIT');
return $docId;
}
catch (Exception $e)
{
$db->query ('ROLLBACK');
throw $e;
}
}
}
?>