seeddms-code/inc/inc.Utils.php
2022-04-12 13:26:03 +02:00

1093 lines
32 KiB
PHP
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<?php
// MyDMS. Document Management System
// Copyright (C) 2002-2005 Markus Westphal
// Copyright (C) 2006-2008 Malcolm Cowe
// Copyright (C) 2010 Matteo Lucarelli
//
// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
/* deprecated! use SeedDMS_Core_File::format_filesize() instead */
function formatted_size($size_bytes) { /* {{{ */
if ($size_bytes>1000000000) return number_format($size_bytes/1000000000,1,".","")." GBytes";
else if ($size_bytes>1000000) return number_format($size_bytes/1000000,1,".","")." MBytes";
else if ($size_bytes>1000) return number_format($size_bytes/1000,1,".","")." KBytes";
return number_format($size_bytes,0,"","")." Bytes";
} /* }}} */
/* Date picker needs a different syntax for date formats using
* yyyy for %Y
* yy for %y
* mm for %m
* dd for %d
* This functions returns the converted format
*/
function getConvertDateFormat() { /* {{{ */
global $settings;
if($settings->_dateformat) {
return str_replace(['y', 'Y', 'm', 'M', 'F', 'd', 'l', 'D'], ['yy', 'yyyy', 'mm', 'M', 'MM', 'dd', 'DD', 'D'], $settings->_dateformat);
} else
return 'yyyy-mm-dd';
} /* }}} */
function getReadableDate($timestamp=0) { /* {{{ */
global $settings;
if(!$timestamp)
$timestamp = time();
elseif(!is_numeric($timestamp))
$timestamp = strtotime($timestamp);
if($settings->_dateformat)
return date($settings->_dateformat, $timestamp);
else
return date("Y-m-d", $timestamp);
} /* }}} */
function getLongReadableDate($timestamp) { /* {{{ */
global $settings;
if(!is_numeric($timestamp))
$timestamp = strtotime($timestamp);
if($settings->_datetimeformat)
return date($settings->_datetimeformat, $timestamp);
else
return date("Y-m-d H:i:s", $timestamp);
} /* }}} */
function getPeriodOfTime($timestamp) { /* {{{ */
if(!is_numeric($timestamp))
$timestamp = strtotime($timestamp);
$time = time() - $timestamp; // to get the time since that moment
$time = ($time<1)? 1 : $time;
$tokens = array (
31536000 => 'abbr_year',
2592000 => 'abbr_month',
604800 => 'abbr_week',
86400 => 'abbr_day',
3600 => 'abbr_hour',
60 => 'abbr_minute',
1 => 'abbr_second'
);
foreach ($tokens as $unit => $text) {
if ($time < $unit) continue;
$numberOfUnits = floor($time / $unit);
return $numberOfUnits.' '.(($numberOfUnits>1) ? getMLText($text):getMLText($text));
}
} /* }}} */
/*
* Converts a date string into a timestamp
*
* @param $date string date in format understood by strftime
* @return integer/boolean unix timestamp or false in case of an error
*/
function makeTsFromDate($date) { /* {{{ */
return strtotime($date);
} /* }}} */
/*
* Converts a date/time string into a timestamp
*
* @param $date string date in form Y-m-d H:i:s
* @return integer/boolean unix timestamp or false in case of an error
*/
function makeTsFromLongDate($date) { /* {{{ */
return strtotime($date);
$tmp = explode(' ', $date);
if(count($tmp) != 2)
return false;
$tarr = explode(':', $tmp[1]);
$darr = explode('-', $tmp[0]);
if(count($tarr) != 3 || count($darr) != 3)
return false;
$ts = mktime($tarr[0], $tarr[1], $tarr[2], $darr[1], $darr[2], $darr[0]);
return $ts;
} /* }}} */
function getReadableDuration($secs) { /* {{{ */
$s = "";
foreach ( getReadableDurationArray($secs) as $k => $v ) {
if ( $v ) $s .= $v." ".($v==1? substr($k,0,-1) : $k).", ";
}
return substr($s, 0, -2);
} /* }}} */
function getReadableDurationArray($secs) { /* {{{ */
$units = array(
getMLText("weeks") => 7*24*3600,
getMLText("days") => 24*3600,
getMLText("hours") => 3600,
getMLText("minutes") => 60,
getMLText("seconds") => 1,
);
foreach ( $units as &$unit ) {
$quot = intval($secs / $unit);
$secs -= $quot * $unit;
$unit = $quot;
}
return $units;
} /* }}} */
//
// The original string sanitizer, kept for reference.
//function sanitizeString($string) {
// $string = str_replace("'", "&#0039;", $string);
// $string = str_replace("--", "", $string);
// $string = str_replace("<", "&lt;", $string);
// $string = str_replace(">", "&gt;", $string);
// $string = str_replace("/*", "", $string);
// $string = str_replace("*/", "", $string);
// $string = str_replace("\"", "&quot;", $string);
//
// return $string;
//}
/* Deprecated, do not use anymore */
function sanitizeString($string) { /* {{{ */
$string = (string) $string;
if (get_magic_quotes_gpc()) {
$string = stripslashes($string);
}
// The following three are against sql injection. They are not
// needed anymore because strings are quoted propperly when saved into
// the database.
// $string = str_replace("\\", "\\\\", $string);
// $string = str_replace("--", "\-\-", $string);
// $string = str_replace(";", "\;", $string);
// Use HTML entities to represent the other characters that have special
// meaning in SQL. These can be easily converted back to ASCII / UTF-8
// with a decode function if need be.
$string = str_replace("&", "&amp;", $string);
$string = str_replace("%", "&#0037;", $string); // percent
$string = str_replace("\"", "&quot;", $string); // double quote
$string = str_replace("/*", "&#0047;&#0042;", $string); // start of comment
$string = str_replace("*/", "&#0042;&#0047;", $string); // end of comment
$string = str_replace("<", "&lt;", $string);
$string = str_replace(">", "&gt;", $string);
$string = str_replace("=", "&#0061;", $string);
$string = str_replace(")", "&#0041;", $string);
$string = str_replace("(", "&#0040;", $string);
$string = str_replace("'", "&#0039;", $string);
$string = str_replace("+", "&#0043;", $string);
return trim($string);
} /* }}} */
/* Deprecated, do not use anymore, but keep it for upgrading
* older versions
*/
function mydmsDecodeString($string) { /* {{{ */
$string = (string)$string;
$string = str_replace("&amp;", "&", $string);
$string = str_replace("&#0037;", "%", $string); // percent
$string = str_replace("&quot;", "\"", $string); // double quote
$string = str_replace("&#0047;&#0042;", "/*", $string); // start of comment
$string = str_replace("&#0042;&#0047;", "*/", $string); // end of comment
$string = str_replace("&lt;", "<", $string);
$string = str_replace("&gt;", ">", $string);
$string = str_replace("&#0061;", "=", $string);
$string = str_replace("&#0041;", ")", $string);
$string = str_replace("&#0040;", "(", $string);
$string = str_replace("&#0039;", "'", $string);
$string = str_replace("&#0043;", "+", $string);
return $string;
} /* }}} */
function createVersionigFile($document) { /* {{{ */
global $settings, $dms;
// if directory has been removed recreate it
if (!file_exists($dms->contentDir . $document->getDir()))
if (!SeedDMS_Core_File::makeDir($dms->contentDir . $document->getDir())) return false;
$handle = fopen($dms->contentDir . $document->getDir() .$settings-> _versioningFileName , "wb");
if (is_bool($handle)&&!$handle) return false;
$tmp = $document->getName()." (ID ".$document->getID().")\n\n";
fwrite($handle, $tmp);
$owner = $document->getOwner();
$tmp = getMLText("owner")." = ".$owner->getFullName()." <".$owner->getEmail().">\n";
fwrite($handle, $tmp);
$tmp = getMLText("creation_date")." = ".getLongReadableDate($document->getDate())."\n";
fwrite($handle, $tmp);
$latestContent = $document->getLatestContent();
$tmp = "\n### ".getMLText("current_version")." ###\n\n";
fwrite($handle, $tmp);
$tmp = getMLText("version")." = ".$latestContent->getVersion()."\n";
fwrite($handle, $tmp);
$tmp = getMLText("file")." = ".$latestContent->getOriginalFileName()." (".$latestContent->getMimeType().")\n";
fwrite($handle, $tmp);
$tmp = getMLText("comment")." = ". $latestContent->getComment()."\n";
fwrite($handle, $tmp);
$status = $latestContent->getStatus();
$tmp = getMLText("status")." = ".getOverallStatusText($status["status"])."\n";
fwrite($handle, $tmp);
$reviewStatus = $latestContent->getReviewStatus();
$tmp = "\n### ".getMLText("reviewers")." ###\n";
fwrite($handle, $tmp);
foreach ($reviewStatus as $r) {
switch ($r["type"]) {
case 0: // Reviewer is an individual.
$required = $dms->getUser($r["required"]);
if (!is_object($required)) $reqName = getMLText("unknown_user")." = ".$r["required"];
else $reqName = getMLText("user")." = ".$required->getFullName();
break;
case 1: // Reviewer is a group.
$required = $dms->getGroup($r["required"]);
if (!is_object($required)) $reqName = getMLText("unknown_group")." = ".$r["required"];
else $reqName = getMLText("group")." = ".$required->getName();
break;
}
$tmp = "\n".$reqName."\n";
fwrite($handle, $tmp);
$tmp = getMLText("status")." = ".getReviewStatusText($r["status"])."\n";
fwrite($handle, $tmp);
$tmp = getMLText("comment")." = ". $r["comment"]."\n";
fwrite($handle, $tmp);
$tmp = getMLText("last_update")." = ".$r["date"]."\n";
fwrite($handle, $tmp);
}
$approvalStatus = $latestContent->getApprovalStatus();
$tmp = "\n### ".getMLText("approvers")." ###\n";
fwrite($handle, $tmp);
foreach ($approvalStatus as $r) {
switch ($r["type"]) {
case 0: // Reviewer is an individual.
$required = $dms->getUser($r["required"]);
if (!is_object($required)) $reqName = getMLText("unknown_user")." = ".$r["required"];
else $reqName = getMLText("user")." = ".$required->getFullName();
break;
case 1: // Reviewer is a group.
$required = $dms->getGroup($r["required"]);
if (!is_object($required)) $reqName = getMLText("unknown_group")." = ".$r["required"];
else $reqName = getMLText("group")." = ".$required->getName();
break;
}
$tmp = "\n".$reqName."\n";
fwrite($handle, $tmp);
$tmp = getMLText("status")." = ".getApprovalStatusText($r["status"])."\n";
fwrite($handle, $tmp);
$tmp = getMLText("comment")." = ". $r["comment"]."\n";
fwrite($handle, $tmp);
$tmp = getMLText("last_update")." = ".$r["date"]."\n";
fwrite($handle, $tmp);
}
$versions = $document->getContent();
$tmp = "\n### ".getMLText("previous_versions")." ###\n";
fwrite($handle, $tmp);
for ($i = count($versions)-2; $i >= 0; $i--){
$version = $versions[$i];
$status = $version->getStatus();
$tmp = "\n".getMLText("version")." = ".$version->getVersion()."\n";
fwrite($handle, $tmp);
$tmp = getMLText("file")." = ".$version->getOriginalFileName()." (".$version->getMimeType().")\n";
fwrite($handle, $tmp);
$tmp = getMLText("comment")." = ". $version->getComment()."\n";
fwrite($handle, $tmp);
$status = $latestContent->getStatus();
$tmp = getMLText("status")." = ".getOverallStatusText($status["status"])."\n";
fwrite($handle, $tmp);
}
fclose($handle);
return true;
} /* }}} */
/**
* Calculate disk space of file or directory
*
* original funcion by shalless at rubix dot net dot au (php.net)
* stat() replace by filesize() to make it work on all platforms.
*
* @param string $dir directory or filename
* @return integer number of bytes
*/
function dskspace($dir) { /* {{{ */
$space = 0;
if(is_file($dir)) {
$space = filesize($dir);
} elseif (is_dir($dir)) {
if($dh = opendir($dir)) {
while (($file = readdir($dh)) !== false)
if ($file != "." and $file != "..")
$space += dskspace($dir."/".$file);
closedir($dh);
}
}
return $space;
} /* }}} */
/**
* Replacement of PHP's basename function
*
* Because basename is locale dependent and strips off non ascii chars
* from the beginning of filename, it cannot be used in a environment
* where locale is set to e.g. 'C'
*/
function utf8_basename($path, $suffix='') { /* {{{ */
$rpos = strrpos($path, DIRECTORY_SEPARATOR);
if($rpos === false)
return $path;
$file = substr($path, $rpos+1);
$suflen = strlen($suffix);
if($suflen && (substr($file, -$suflen) == $suffix)){
$file = substr($file, 0, -$suflen);
}
return $file;
} /* }}} */
function getLogger($prefix='') { /* {{{ */
global $settings;
if($settings->_logFileEnable) {
if ($settings->_logFileRotation=="h") $logname=date("YmdH", time());
else if ($settings->_logFileRotation=="d") $logname=date("Ymd", time());
else $logname=date("Ym", time());
$logname = $settings->_contentDir."log/".$prefix.$logname.".log";
if(!file_exists($settings->_contentDir.'log'))
@mkdir($settings->_contentDir.'log');
if(file_exists($settings->_contentDir.'log') && is_dir($settings->_contentDir.'log')) {
$logger = Log::factory('file', $logname);
$logger->setMask(Log::MAX(PEAR_LOG_DEBUG));
} else
$logger = null;
} else {
$logger = null;
}
return $logger;
} /* }}} */
/**
* Log a message
*
* This function is still here for convienice and because it is
* used at so many places.
*
* @param string $msg
* @param int $priority can be one of PEAR_LOG_EMERG, PEAR_LOG_ALERT,
* PEAR_LOG_CRIT, PEAR_LOG_ERR, PEAR_LOG_WARNING,
* PEAR_LOG_NOTICE, PEAR_LOG_INFO, and PEAR_LOG_DEBUG.
*/
function add_log_line($msg="", $priority=null) { /* {{{ */
global $logger, $user;
if(!$logger) return;
$ip = "-";
if(!empty($_SERVER['HTTP_X_FORWARDED_FOR']))
$ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
elseif(!empty($_SERVER['REMOTE_ADDR']))
$ip = $_SERVER['REMOTE_ADDR'];
if(!empty($_SERVER["REQUEST_URI"]))
$scriptname = basename($_SERVER["REQUEST_URI"]).' ';
else
$scriptname = basename($_SERVER["SCRIPT_NAME"]).' ';
if($user)
$logger->log($user->getLogin()." (".$ip.") ".$scriptname.($msg ? $msg : ''), $priority);
else
$logger->log("-- (".$ip.") ".$scriptname.($msg ? $msg : ''), $priority);
} /* }}} */
function _add_log_line($msg="") { /* {{{ */
global $settings,$user;
if ($settings->_logFileEnable!=TRUE) return;
if ($settings->_logFileRotation=="h") $logname=date("YmdH", time());
else if ($settings->_logFileRotation=="d") $logname=date("Ymd", time());
else $logname=date("Ym", time());
if($h = fopen($settings->_contentDir.$logname.".log", "a")) {
fwrite($h,date("Y/m/d H:i", time())." ".$user->getLogin()." (".$_SERVER['REMOTE_ADDR'].") ".basename($_SERVER["REQUEST_URI"]).$msg."\n");
fclose($h);
}
} /* }}} */
function getFolderPathHTML($folder, $tagAll=false, $document=null) { /* {{{ */
$path = $folder->getPath();
$txtpath = "";
for ($i = 0; $i < count($path); $i++) {
if ($i +1 < count($path)) {
$txtpath .= "<a href=\"../out/out.ViewFolder.php?folderid=".$path[$i]->getID()."&showtree=".showtree()."\">".
htmlspecialchars($path[$i]->getName())."</a> / ";
}
else {
$txtpath .= ($tagAll ? "<a href=\"../out/out.ViewFolder.php?folderid=".$path[$i]->getID()."&showtree=".showtree()."\">".
htmlspecialchars($path[$i]->getName())."</a>" : htmlspecialchars($path[$i]->getName()));
}
}
if($document)
$txtpath .= " / <a href=\"../out/out.ViewDocument.php?documentid=".$document->getId()."\">".htmlspecialchars($document->getName())."</a>";
return $txtpath;
} /* }}} */
function showtree() { /* {{{ */
global $settings;
if (isset($_GET["showtree"])) return intval($_GET["showtree"]);
else if ($settings->_expandFolderTree==0) return 0;
return 1;
} /* }}} */
/**
* Create a unique key which is used for form validation to prevent
* CSRF attacks. The key is added to a any form that has to be secured
* as a hidden field. Once the form is submitted the key is compared
* to the current key in the session and the request is only executed
* if both are equal. The key is derived from the session id, a configurable
* encryption key and form identifierer.
*
* @param string $formid individual form identifier
* @return string session key
*/
function createFormKey($formid='') { /* {{{ */
global $settings, $session;
if($session && $id = $session->getId()) {
return md5($id.$settings->_encryptionKey.$formid);
} else {
return md5($settings->_encryptionKey.$formid);
}
} /* }}} */
/**
* Create a hidden field with the name 'formtoken' and set its value
* to the key returned by createFormKey()
*
* @param string $formid individual form identifier
* @return string input field for html formular
*/
function createHiddenFieldWithKey($formid='') { /* {{{ */
return '<input type="hidden" name="formtoken" value="'.createFormKey($formid).'" />';
} /* }}} */
/**
* Check if the form key in the POST or GET request variable 'formtoken'
* has the value of key returned by createFormKey(). Request to modify
* data in the DMS should always use POST because it is harder to run
* CSRF attacks using POST than GET.
*
* @param string $formid individual form identifier
* @param string $method defines if the form data is pass via GET or
* POST (default)
* @return boolean true if key matches otherwise false
*/
function checkFormKey($formid='', $method='POST') { /* {{{ */
switch($method) {
case 'GET':
if(isset($_GET['formtoken']) && $_GET['formtoken'] == createFormKey($formid))
return true;
break;
default:
if(isset($_POST['formtoken']) && $_POST['formtoken'] == createFormKey($formid))
return true;
}
return false;
} /* }}} */
/**
* Check disk usage of currently logged in user
*
* @return boolean/integer true if no quota is set, number of bytes until
* quota is reached. Negative values indicate a disk usage above quota.
*/
function checkQuota($user) { /* {{{ */
global $settings, $dms;
/* check if quota is turn off system wide */
if($settings->_quota == 0)
return true;
$quota = 0;
$uquota = $user->getQuota();
if($uquota > 0)
$quota = $uquota;
elseif($settings->_quota > 0) {
$quota = $settings->_quota;
}
if($quota == 0)
return true;
return ($quota - $user->getUsedDiskSpace());
} /* }}} */
/**
* Encrypt any data with a key
*
* @param string $key
* @param string $value plain text data
* @return string encrypted data
*/
function encryptData($key, $value) { /* {{{ */
$text = $value;
$iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB);
$iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
$crypttext = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $text, MCRYPT_MODE_ECB, $iv);
return $crypttext;
} /* }}} */
/**
* Decrypt data previously encrypted by encrypt
*
* @param string $key
* @param string $value encrypted data
* @return string plain text data
*/
function decryptData($key, $value) { /* {{{ */
$crypttext = $value;
$iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB);
$iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
$decrypttext = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, $crypttext, MCRYPT_MODE_ECB, $iv);
return trim($decrypttext);
} /* }}} */
/**
* Return file extension for a give mimetype
*
* @param string $mimetype Mime-Type
* @return string file extension including leading dot
*/
function get_extension($mimetype) { /* {{{ */
if(empty($mimetype)) return false;
switch($mimetype) {
case 'image/bmp': return '.bmp';
case 'image/x-ms-bmp': return '.bmp';
case 'image/cis-cod': return '.cod';
case 'image/gif': return '.gif';
case 'image/ief': return '.ief';
case 'image/jpeg': return '.jpg';
case 'image/pipeg': return '.jfif';
case 'image/tiff': return '.tif';
case 'image/x-cmu-raster': return '.ras';
case 'image/x-cmx': return '.cmx';
case 'image/x-icon': return '.ico';
case 'image/x-portable-anymap': return '.pnm';
case 'image/x-portable-bitmap': return '.pbm';
case 'image/x-portable-graymap': return '.pgm';
case 'image/x-portable-pixmap': return '.ppm';
case 'image/x-rgb': return '.rgb';
case 'image/x-xbitmap': return '.xbm';
case 'image/x-xpixmap': return '.xpm';
case 'image/x-xwindowdump': return '.xwd';
case 'image/png': return '.png';
case 'image/x-jps': return '.jps';
case 'image/x-freehand': return '.fh';
case 'image/svg+xml': return '.svg';
case 'audio/mp3': return '.mp3';
case 'audio/mpeg': return '.mpeg';
case 'audio/ogg': return '.ogg';
case 'video/mp4': return '.mp4';
case 'video/webm': return '.webm';
case 'application/zip': return '.zip';
case 'application/x-gzip': return '.gz';
case 'application/x-rar': return '.rar';
case 'application/x-compressed-tar': return '.tgz';
case 'application/pdf': return '.pdf';
case 'application/dxf': return '.dxf';
case 'application/msword': return '.doc';
case 'application/postscript': return '.ps';
case 'application/vnd.openxmlformats-officedocument.wordprocessingml.document': return '.docx';
case 'application/vnd.openxmlformats-officedocument.presentationml.presentation': return '.pptx';
case 'text/plain': return '.txt';
case 'text/csv': return '.csv';
case 'text/rtf': return '.rtf';
case 'text/xml': return '.xml';
case 'text/x-php': return '.php';
case 'text/x-tex': return '.tex';
case 'message/rfc822': return '.eml';
default: return false;
}
} /* }}} */
/**
* Adds a missing front slash to a string
*
* This function is used for making sure a directory name has a
* trailing directory separator
*/
function addDirSep($str) { /* {{{ */
if(trim($str) == '')
return '';
if(substr(trim($str), -1, 1) != DIRECTORY_SEPARATOR)
return trim($str).DIRECTORY_SEPARATOR;
else
return trim($str);
} /* }}} */
/**
* Formats comments for aknowledge of reception.
*
* Only use in documentListRow()
*/
function formatComment($an) { /* {{{ */
$t = array();
foreach($an as $a)
$t[] = $a['n']." × ".$a['c'];
return $t;
} /* }}} */
/**
* Send a file from disk to the browser
*
* This function uses either readfile() or the xѕendfile apache module if
* it is installed.
*
* @param string $filename
*/
function sendFile($filename) { /* {{{ */
global $settings;
if($settings->_enableXsendfile && function_exists('apache_get_modules') && in_array('mod_xsendfile',apache_get_modules())) {
header("X-Sendfile: ".$filename);
} else {
$size = filesize($filename);
if (isset($_SERVER['HTTP_RANGE'])) {
$fp = @fopen($filename, 'rb');
$length = $size; // Content length
$start = 0; // Start byte
$end = $size - 1; // End byte
// header("Accept-Ranges: 0-$length");
header("Accept-Ranges: bytes");
$c_start = $start;
$c_end = $end;
list($unit, $range) = explode('=', $_SERVER['HTTP_RANGE'], 2);
if (trim($unit) !== 'bytes') {
header('HTTP/1.1 416 Requested Range Not Satisfiable');
header("Content-Range: bytes $start-$end/$size");
exit;
}
if (strpos($range, ',') !== false) {
header('HTTP/1.1 416 Requested Range Not Satisfiable');
header("Content-Range: bytes $start-$end/$size");
exit;
}
if ($range == '-') {
$c_start = $size - substr($range, 1);
} else {
$range = explode('-', $range);
$c_start = $range[0];
$c_end = (isset($range[1]) && is_numeric($range[1])) ? $range[1] : $size;
}
$c_end = ($c_end > $end) ? $end : $c_end;
if ($c_start > $c_end || $c_start > $size - 1 || $c_end >= $size) {
header('HTTP/1.1 416 Requested Range Not Satisfiable');
header("Content-Range: bytes $start-$end/$size");
exit;
}
$start = $c_start;
$end = $c_end;
$length = $end - $start + 1;
fseek($fp, $start);
header('HTTP/1.1 206 Partial Content');
header("Content-Range: bytes $start-$end/$size");
header("Content-Length: " . $length);
$buffer = 1024 * 8;
while(!feof($fp) && ($p = ftell($fp)) <= $end) {
if ($p + $buffer > $end) {
$buffer = $end - $p + 1;
}
set_time_limit(0);
echo fread($fp, $buffer);
flush();
}
fclose($fp);
} else {
header("Content-Length: " . $size);
/* Make sure output buffering is off */
if (ob_get_level()) {
ob_end_clean();
}
readfile($filename);
}
}
} /* }}} */
/**
* Return protocol and host of url
*
* @return string
*/
function getBaseUrl() { /* {{{ */
return "http".((isset($_SERVER['HTTPS']) && (strcmp($_SERVER['HTTPS'],'off')!=0)) ? "s" : "")."://".$_SERVER['HTTP_HOST'];
} /* }}} */
function getToken($length){ /* {{{ */
$token = "";
$codeAlphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
$codeAlphabet.= "abcdefghijklmnopqrstuvwxyz";
$codeAlphabet.= "0123456789";
$max = strlen($codeAlphabet);
for ($i=0; $i < $length; $i++) {
$token .= $codeAlphabet[random_int(0, $max-1)];
}
return $token;
} /* }}} */
function isAjax() { /* {{{ */
if(!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest')
return true;
else
return false;
} /* }}} */
/**
* Hash a password
*
* @param string $password
* @return string hashed password
*/
function seed_pass_hash($password) { /* {{{ */
return md5($password);
} /* }}} */
/**
* Verify a password
*
* @param string $password
* @return string hashed password
*/
function seed_pass_verify($password, $hash) { /* {{{ */
return $hash == md5($password);
} /* }}} */
function resolveTask($task) {
global $dms, $user, $settings, $logger, $fulltextservice, $notifier, $conversionmgr;
if(is_object($task))
return $task;
if(is_string($task)) {
if(class_exists($task)) {
$task = new $task($dms, $user, $settings, $logger, $fulltextservice, $notifier, $conversionmgr);
}
}
return $task;
}
/**
* Return nonce for CSP
*
* @return string
*/
function createNonce() { /* {{{ */
$length = 16;
$usable = true;
$bytes = openssl_random_pseudo_bytes($length, $usable);
if ($usable === false) {
// weak
// @TODO do something?
}
return base64_encode($bytes);
} /* }}} */
/**
* Compare function for sorting users by login
*
* Use this for usort()
*
* <code>
* $users = $dms->getAllUsers();
* usort($users, 'cmp_user_login');
* </code>
*/
function cmp_user_login($a, $b) { /* {{{ */
$as = strtolower($a->getLogin());
$bs = strtolower($b->getLogin());
if ($as == $bs) {
return 0;
}
return ($as < $bs) ? -1 : 1;
} /* }}} */
/**
* Compare function for sorting users by name
*
* Use this for usort()
*
* <code>
* $users = $dms->getAllUsers();
* usort($users, 'cmp_user_fullname');
* </code>
*/
function cmp_user_fullname($a, $b) { /* {{{ */
$as = strtolower($a->getFullName());
$bs = strtolower($b->getFullName());
if ($as == $bs) {
return 0;
}
return ($as < $bs) ? -1 : 1;
} /* }}} */
/**
* Returns the mandatory reviewers
*
* This function checks if the reviewers have at least read access
* on the folder containing the document.
*
* @param $folder folder where document is located
* @param $user user creating the new version or document
* @return array
*/
function getMandatoryReviewers($folder, $user) { /* {{{ */
global $settings;
/* Get a list of all users and groups with read access on the folder.
* Only those users and groups will be added as reviewers
*/
$docAccess = $folder->getReadAccessList($settings->_enableAdminRevApp, $settings->_enableOwnerRevApp);
$res=$user->getMandatoryReviewers();
$reviewers = array('i'=>[], 'g'=>[]);
foreach ($res as $r){
if ($r['reviewerUserID']!=0){
foreach ($docAccess["users"] as $usr)
if ($usr->getID()==$r['reviewerUserID']){
$reviewers["i"][] = $r['reviewerUserID'];
break;
}
} elseif ($r['reviewerGroupID']!=0){
foreach ($docAccess["groups"] as $grp)
if ($grp->getID()==$r['reviewerGroupID']){
$reviewers["g"][] = $r['reviewerGroupID'];
break;
}
}
}
return $reviewers;
} /* }}} */
/**
* Returns the mandatory approvers
*
* This function checks if the approvers have at least read access
* on the folder containing the document.
*
* @param $folder folder where document is located
* @param $user user creating the new version or document
* @return array
*/
function getMandatoryApprovers($folder, $user) { /* {{{ */
global $settings;
/* Get a list of all users and groups with read access on the folder.
* Only those users and groups will be added as approvers
*/
$docAccess = $folder->getReadAccessList($settings->_enableAdminRevApp, $settings->_enableOwnerRevApp);
$res=$user->getMandatoryApprovers();
$approvers = array('i'=>[], 'g'=>[]);
foreach ($res as $r){
if ($r['approverUserID']!=0){
foreach ($docAccess["users"] as $usr)
if ($usr->getID()==$r['approverUserID']){
$approvers["i"][] = $r['approverUserID'];
break;
}
}
else if ($r['approverGroupID']!=0){
foreach ($docAccess["groups"] as $grp)
if ($grp->getID()==$r['approverGroupID']){
$approvers["g"][] = $r['approverGroupID'];
break;
}
}
}
return $approvers;
} /* }}} */
/**
* Class for creating encrypted api keys
*
* <code>
* <?php
* $CSRF = new SeedDMS_CSRF($settings->_encryptionKey);
* $kkk = $CSRF->create_api_key();
* echo $kkk;
* echo $CSRF->check_api_key($kkk) ? 'valid' : 'invalid';
* ?>
* </code>
*/
class SeedDMS_CSRF { /* {{{ */
protected $secret;
public function __construct($secret) { /* {{{ */
$this->secret = $secret;
} /* }}} */
public function create_api_key() { /* {{{ */
return base64_encode($this->encrypt(time().'|'.$_SERVER['REMOTE_ADDR'])); // !change if you dont want IP check
} /* }}} */
public function check_api_key($key, $timeout = 5) { /* {{{ */
if (empty($key)) exit('Invalid Key');
$keys = explode('|', $this->decrypt(base64_decode($key)));
return (
isset($key, $keys[0], $keys[1]) &&
$keys[0] >= (time() - $timeout) &&
$keys[1] == $_SERVER['REMOTE_ADDR'] // !change if you dont want IP check
);
} /* }}} */
public function encrypt($string, $key = 'PrivateKey', $method = 'AES-256-CBC') { /* {{{ */
// hash
$key = hash('sha256', $key);
// create iv - encrypt method AES-256-CBC expects 16 bytes
$iv = substr(hash('sha256', $this->secret), 0, 16);
// encrypt
$output = openssl_encrypt($string, $method, $key, 0, $iv);
// encode
return base64_encode($output);
} /* }}} */
public function decrypt($string, $key = 'PrivateKey', $method = 'AES-256-CBC') { /* {{{ */
// hash
$key = hash('sha256', $key);
// create iv - encrypt method AES-256-CBC expects 16 bytes
$iv = substr(hash('sha256', $this->secret), 0, 16);
// decode
$string = base64_decode($string);
// decrypt
return openssl_decrypt($string, $method, $key, 0, $iv);
} /* }}} */
} /* }}} */
/**
* Class to represent a jwt token
*
*
* @category DMS
* @package SeedDMS
* @author Uwe Steinmann <uwe@steinmann.cx>
* @copyright 2016 Uwe Steinmann
* @version Release: @package_version@
*/
class SeedDMS_JwtToken { /* {{{ */
protected $jwtsecret;
public function __construct($jwtsecret = '') { /* {{{ */
$this->jwtsecret = $jwtsecret;
} /* }}} */
public function jwtEncode($payload) { /* {{{ */
$header = [
"alg" => "HS256",
"typ" => "JWT"
];
$encHeader = self::base64UrlEncode(json_encode($header));
$encPayload = self::base64UrlEncode(json_encode($payload));
$hash = self::base64UrlEncode(self::calculateHash($encHeader, $encPayload));
return "$encHeader.$encPayload.$hash";
} /* }}} */
public function jwtDecode($token) { /* {{{ */
if (!$this->jwtsecret) return "";
$split = explode(".", $token);
if (count($split) != 3) return "";
$hash = self::base64UrlEncode(self::calculateHash($split[0], $split[1]));
if (strcmp($hash, $split[2]) != 0) return "";
return self::base64UrlDecode($split[1]);
} /* }}} */
protected function calculateHash($encHeader, $encPayload) { /* {{{ */
return hash_hmac("sha256", "$encHeader.$encPayload", $this->jwtsecret, true);
} /* }}} */
protected function base64UrlEncode($str) { /* {{{ */
return str_replace("/", "_", str_replace("+", "-", trim(base64_encode($str), "=")));
} /* }}} */
protected function base64UrlDecode($payload) { /* {{{ */
$b64 = str_replace("_", "/", str_replace("-", "+", $payload));
switch (strlen($b64) % 4) {
case 2:
$b64 = $b64 . "=="; break;
case 3:
$b64 = $b64 . "="; break;
}
return base64_decode($b64);
} /* }}} */
} /* }}} */
class SeedDMS_FolderTree { /* {{{ */
public function __construct($folder, $callback) { /* {{{ */
$iter = new \SeedDMS\RecursiveFolderIterator($folder);
$iter2 = new RecursiveIteratorIterator($iter, RecursiveIteratorIterator::SELF_FIRST);
foreach($iter2 as $ff) {
call_user_func($callback, $ff, $iter2->getDepth());
// echo $ff->getID().': '.$ff->getFolderPathPlain().'-'.$ff->getName()."<br />";
}
} /* }}} */
} /* }}} */