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convertCore.php
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2323 lines (2240 loc) · 157 KB
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<!DOCTYPE HTML>
<?php
// / -----------------------------------------------------------------------------------
// / COPYRIGHT INFORMATION ...
// / HRConvert2, Copyright on 5/26/2026 by Justin Grimes, www.github.com/zelon88
// /
// / LICENSE INFORMATION ...
// / This project is protected by the GNU GPLv3 Open-Source license.
// / https://www.gnu.org/licenses/gpl-3.0.html
// /
// / APPLICATION INFORMATION ...
// / This application is designed to provide a web-interface for converting file formats
// / on a server for users of any web browser without authentication.
// /
// / FILE INFORMATION ...
// / v3.4.9.
// / This file contains the core logic of the application.
// /
// / HARDWARE REQUIREMENTS ...
// / This application requires at least a Raspberry Pi Model B+ or greater.
// / This application will run on just about any x86 or x64 computer.
// /
// / DEPENDENCY REQUIREMENTS ...
// / This application requires Debian Linux, Apache 2.4, PHP 8+, FFMPEG, Dia,
// / Mkisofs, 7zip, LibreOffice, Unoconv, libgxps-utils, Tesseract, Unzip, Rar,
// / Unrar, ClamAV, MeshLab, PopplerUtils, PDFTOTEXT, ImageMagick & xvfb-run.
// /
// / <3 Open-Source
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to reset PHP's time limit for execution.
function setTimeLimit() {
$TimeReset = set_time_limit(0);
return $TimeReset; }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to set the date & time for the session.
function verifyTime() {
// / Set variables.
global $TimeIsSet, $Date, $Time;
$TimeIsSet = FALSE;
$tzAbbreviations = DateTimeZone::listAbbreviations();
$tzList = array();
// / Build a list of timezones supported by this PHP installation.
foreach ($tzAbbreviations as $zone) foreach ($zone as $item) if (is_string($item['timezone_id']) && $item['timezone_id'] !== '') $tzList[] = $item['timezone_id'];
$tzList = array_unique($tzList);
$zoneList = array_values($tzList);
// / Check that the currently set timezone is valid.
if (in_array(@date_default_timezone_get(), $zoneList)) $TimeIsSet = TRUE;
// / Try to set the time regardless of whether or not the timezone is correct.
$Date = date("m_d_y");
$Time = date("F j, Y, g:i a");
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$tzAbbreviations = $tzList = $zoneList = $zone = $item = NULL;
unset($tzAbbreviations, $tzList, $zoneList, $zone, $item);
return array($TimeIsSet, $Date, $Time); }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to sanitize input strings with varying degrees of tolerance.
// / Filters a given string of | \ ~ # [ ] ( ) { } ; : $ ! # ^ & % @ > * < " / ' ` chr(9) chr(10) chr(13) chr(0)
// / This function will replace any of the above specified charcters with NOTHING. No character at all. An empty string.
// / This function will replace whitespace with the underscore character.
// / This function will remove leading and traling dashes.
// / Set $strict to TRUE to also filter out backslash characters as well. Example: /
function sanitizeString($Variable, $strict) {
// / Set variables.
// / Note that this function does not use the global $DangerousFiles.
// / Instead this function defines & destroys it's own array every time it is called.
$dangerFiles = array(NULL, '.js', '.php', '.html', '.css', '.phar', '..', 'index.php', 'index.html', '--');
// / Check for dangerous files or escape conditions.
foreach ($dangerFiles as $danFile) $Variable = str_replace($danFile, '', $Variable);
if ($strict) $Variable = htmlentities(trim(trim(str_replace(' ', '_', str_replace('..', '', str_replace('//', '', str_replace(str_split(',|\\~#[](){};:$!#^&%@>*<"\'/`'.chr(9).chr(10).chr(13).chr(0)), '', $Variable))))), '-'), ENT_QUOTES, 'UTF-8');
if (!$strict) $Variable = htmlentities(trim(trim(str_replace(' ', '_', str_replace('..', '', str_replace('//', '', str_replace(str_split(',|\\~#[](){};:$!#^&%@>*<"\'`'.chr(9).chr(10).chr(13).chr(0)), '', $Variable))))), '-'), ENT_QUOTES, 'UTF-8');
// / Check for dangerous files or escape conditions one more time.
foreach ($dangerFiles as $danFile) $Variable = str_replace($danFile, '', $Variable);
// / Trim the variable one last time to avoid any crafted leading dashes or directory separators.
$Variable = trim(trim(trim(trim($Variable, '-'), '.'), '-'), '.');
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$strict = $dangerFiles = $danFile = NULL;
unset($strict, $dangerFiles, $danFile);
return $Variable; }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to sanitize input strings or arrays with varying degrees of tolerance.
// / Filters a given string of | \ ~ # [ ] ( ) { } ; : $ ! # ^ & % @ > * < " / ' ` chr(9) chr(10) chr(13) chr(0)
// / This function will replace any of the above specified charcters with NOTHING. No character at all. An empty string.
// / This function will replace whitespace with the underscore character.
// / Set $strict to TRUE to also filter out backslash characters as well. Example: /
function sanitize($Variable, $strict) {
// / Set variables.
$VariableIsSanitized = TRUE;
$var = '';
$key = 0;
if (!is_bool($strict)) $strict = TRUE;
// / Only continue if the input variable is a type that we can properly sanitize.
if (!is_string($Variable) && !is_numeric($Variable) && !is_array($Variable)) $VariableIsSanitized = FALSE;
else {
// / Sanitize array inputs.
// / Note that when $strict is TRUE this also filters out backslashes.
if (is_array($Variable)) foreach ($Variable as $key => $var) $Variable[$key] = sanitizeString($Variable[$key], $strict);
// / Sanitize string & numeric inputs.
// / Note that when $strict is TRUE this also filters out backslashes.
if (is_string($Variable) or is_numeric($Variable)) $Variable = sanitizeString($Variable, $strict); }
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$strict = $key = $var = NULL;
unset($strict, $key, $var);
return array($Variable, $VariableIsSanitized); }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to load required HRConvert2 files.
function verifyInstallation() {
// / Set variables.
global $Salts1, $Salts2, $Salts3, $Salts4, $Salts5, $Salts6, $URL, $VirusScan, $AllowUserVirusScan, $InstLoc, $ServerRootDir, $ConvertLoc, $LogDir, $ApplicationName, $ApplicationTitle, $SupportedLanguages, $DefaultLanguage, $AllowUserSelectableLanguage, $SupportedGuis, $DefaultGui, $AllowUserSelectableGui, $DeleteThreshold, $Verbose, $MaxLogSize, $Font, $ButtonStyle, $DefaultColor, $SupportedColors, $AllowUserSelectableColor, $ColorToUse, $ShowGUI, $ShowFinePrint, $TOSURL, $PPURL, $ScanCoreMemoryLimit, $ScanCoreChunkSize, $ScanCoreDebug, $ScanCoreVerbose, $SpinnerStyle, $SpinnerColor, $URL, $AllowUserShare, $SupportedConversionTypes, $VersionInfoFile, $Version, $DeleteBuildEnvironment, $DeleteDevelopmentDocumentation, $UserArchiveArray, $UserDearchiveArray, $UserDocumentArray, $UserSpreadsheetArray, $UserPresentationInputArray, $UserPresentationOutputArray, $UserXPSInputArray, $UserXPSOutputArray, $UserImageArray, $UserMediaInputArray, $UserMediaOutputArray, $UserVideoInputArray, $UserVideoOutputArray, $UserStreamArray, $UserDrawingArray, $UserModelArray, $UserSubtitleInputArray, $UserSubtitleOutputArray, $UserPDFWorkArr, $RARArchiveMethod, $RetryCount, $DocumentEngineSleepTimer, $HomeLoc, $ProprietaryLoc, $UsePatchedDocumentEngine;
// / Define absolute paths for files that we only have relative paths for.
$InstallationIsVerified = $buildDirDeleted = $dockerFileDeleted = $readmeDeleted = $changelogFileDeleted = $buildEnvDeleted = $devDocsDeleted = FALSE;
$ConfigFile = realpath(dirname(__FILE__).DIRECTORY_SEPARATOR.'Resources'.DIRECTORY_SEPARATOR.'config.php');
$VersionInfoFile = realpath(dirname(__FILE__).DIRECTORY_SEPARATOR.'Resources'.DIRECTORY_SEPARATOR.'versionInfo.php');
$dockerFile = realpath(dirname(__FILE__).DIRECTORY_SEPARATOR.'Documentation'.DIRECTORY_SEPARATOR.'Build'.DIRECTORY_SEPARATOR.'Dockerfile');
$changelogFile = realpath(dirname(__FILE__).DIRECTORY_SEPARATOR.'Documentation'.DIRECTORY_SEPARATOR.'CHANGELOG.txt');
$readmeFile = realpath(dirname(__FILE__).DIRECTORY_SEPARATOR.'README.md');
$buildDir = realpath(dirname(__DIR__).DIRECTORY_SEPARATOR.'Build');
// / Check for required files & stop execution if they are missing.
if (!file_exists($ConfigFile)) die ('ERROR!!! HRConvert2-0: Could not process the HRConvert2 Configuration file (config.php)!'.PHP_EOL.'<br />');
else require_once ($ConfigFile);
if (!file_exists($VersionInfoFile)) die ('ERROR!!! HRConvert2-24000: Could not process the HRConvert2 Version Information file (versionInfo.php)!'.PHP_EOL.'<br />');
else require_once ($VersionInfoFile);
// / Delete the build environment if specified by config.php.
if ($DeleteBuildEnvironment) {
if (is_dir($buildDir)) $buildDirDeleted = cleanFiles($buildDir);
if (file_exists($dockerFile)) $dockerFileDeleted = unlink($dockerFile);
if (file_exists($dockerFile) && file_exists($buildDir)) $buildEnvDeleted = TRUE; }
// / Delete the development environment if specified by config.php.
if ($DeleteDevelopmentDocumentation) {
if (file_exists($changelogFile)) $changelogFileDeleted = unlink($changelogFile);
if (file_exists($readmeFile)) $readmeDeleted = unlink($readmeFile);
if (!file_exists($changelogFile) && !file_exists($readmeFile)) $devDocsDeleted = TRUE; }
// / Perform a check to see if any required operations failed.
// / Installation is considered verified when check one & check two are both false.
$InstallationIsVerified = TRUE;
if ($DeleteBuildEnvironment) if (!$buildEnvDeleted) $InstallationIsVerified = FALSE;
if ($DeleteDevelopmentDocumentation) if (!$devDocsDeleted) $InstallationIsVerified = FALSE;
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$buildDir = $buildDirDeleted = $dockerFile = $dockerFileDeleted = $readmeFile = $readmeDeleted = $changelogFile = $changelogFileDeleted = $buildEnvDeleted = $devDocsDeleted = $checkOne = $checkTwo = NULL;
unset($buildDir, $buildDirDeleted, $dockerFile, $dockerFileDeleted, $readmeFile, $readmeDeleted, $changelogFile, $changelogFileDeleted, $buildEnvDeleted, $devDocsDeleted);
return array($InstallationIsVerified, $ConfigFile, $Version); }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to detect the users IP so it can be used as an identifier for the session.
function verifySession() {
// / Set variables.
$IP = '';
$HashedUserAgent = hash('sha256', $_SERVER['HTTP_USER_AGENT']);
$SessionIsVerified = TRUE;
// / Detect an IP that we can use as an identifier for the session.
if (!empty($_SERVER['HTTP_CLIENT_IP'])) $IP = htmlentities(str_replace(str_split('~#[](){};:$!#^&%@>*<"\''), '', $_SERVER['HTTP_CLIENT_IP']), ENT_QUOTES, 'UTF-8');
elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) $IP = htmlentities(str_replace(str_split('~#[](){};:$!#^&%@>*<"\''), '', $_SERVER['HTTP_X_FORWARDED_FOR']), ENT_QUOTES, 'UTF-8');
else $IP = htmlentities(str_replace('..', '', str_replace(str_split('~#[](){};:$!#^&%@>*<"\''), '', $_SERVER['REMOTE_ADDR'])), ENT_QUOTES, 'UTF-8');
return array($SessionIsVerified, $IP, $HashedUserAgent); }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to define the $SesHash related variables for the session.
function verifySesHash($IP, $HashedUserAgent) {
// / Set variables.
global $Date, $Salts1, $Salts2, $Salts3, $Salts4, $Salts5, $Salts6, $Token1;
if (is_string($Salts1) && is_string($Salts2) && is_string($Salts3) && is_string($Salts4) && is_string($Salts4) && is_string($Salts5) && is_string($Salts6)) {
$SesHashIsVerified = TRUE;
$SesHash = substr(hash('ripemd160', $Date.$Salts1.$Salts2.$Salts3.$Salts4.$Salts5.$Salts6), -12);
$SesHash2 = substr(hash('ripemd160', $SesHash.$Token1.$Date.$IP.$HashedUserAgent.$Salts1.$Salts2.$Salts3.$Salts4.$Salts5.$Salts6), -12);
$SesHash3 = $SesHash.'/'.$SesHash2;
$SesHash4 = hash('ripemd160', $Salts6.$Salts5.$Salts4.$Salts3.$Salts2.$Salts1); }
else $SesHashIsVerified = $SesHash = $SesHash2 = $SesHash3 = $SesHash4 = FALSE;
return array($SesHashIsVerified, $SesHash, $SesHash2, $SesHash3, $SesHash4); }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to create a logfile if one does not exist.
function verifyLogs() {
// / Set variables.
global $LogDir, $LogFile, $MaxLogSize, $InstLoc, $SesHash, $SesHash4, $DefaultLogDir, $DefaultLogSize, $Time, $Date, $LogInc, $LogInc2, $MaxLogSize, $LogDir, $LogFile, $VirusScan, $ApplicationName, $PermissionLevels;
$LogExists = $logWritten = FALSE;
$LogInc = $LogInc2 = 0;
$LogFile = str_replace('..', '', $LogDir.'/'.$ApplicationName.'_'.$LogInc.'_'.$Date.'_'.$SesHash4.'_'.$SesHash.'.txt');
$DefaultLogDir = $InstLoc.'/Logs';
$DefaultLogSize = 1048576;
$ClamLogFile = str_replace('..', '', $LogDir.'/ClamLog_'.$LogInc2.'_'.$Date.'_'.$SesHash4.'_'.$SesHash.'.txt');
if (!is_numeric($MaxLogSize)) $MaxLogSize = $DefaultLogSize;
if (!is_dir($LogDir)) @mkdir($LogDir, $PermissionLevels);
if (!is_dir($LogDir)) $LogDir = $DefaultLogDir;
if (!is_dir($LogDir)) die('ERROR!!! '.$Time.': '.$ApplicationName.'-3, The log directory does not exist at '.$LogDir.'.');
if (!file_exists($LogDir.'/index.html')) @copy('index.html', $LogDir.'/index.html');
// / Create a log file depending on whether or not the max filesize has been reached.
while (file_exists($LogFile) && round((filesize($LogFile) / $MaxLogSize), 2) > $MaxLogSize) {
$LogInc++;
$LogFile = str_replace('..', '', $LogDir.'/'.$ApplicationName.'_'.$LogInc.'_'.$Date.'_'.$SesHash4.'_'.$SesHash.'.txt');
$logWritten = file_put_contents($LogFile, 'OP-Act, '.$Time.': Logfile created using method 0.'.PHP_EOL, FILE_APPEND); }
if (!file_exists($LogFile)) $logWritten = file_put_contents($LogFile, 'OP-Act, '.$Time.': Logfile created using method 1.'.PHP_EOL, FILE_APPEND);
if (file_exists($LogFile)) $LogExists = TRUE;
// / Set a clamlog file depending on whether or not the max filesize has been reached, but do not create one yet.
if ($VirusScan) {
while (file_exists($ClamLogFile) && round((filesize($ClamLogFile) / $MaxLogSize), 2) > $MaxLogSize) {
$LogInc2++;
$LogFile = str_replace('..', '', $LogDir.'/ClamLog_'.$LogInc2.'_'.$Date.'_'.$SesHash4.'_'.$SesHash.'.txt'); } }
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$logWritten = NULL;
unset($logWritten);
return array($LogExists, $LogFile, $ClamLogFile); }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to format a log entry & write it to the logfile.
function logEntry($entry) {
// / Set variables.
global $Time, $LogFile, $SesHash3;
$LogWritten = FALSE;
// / Format the input string into a log entry & write it to the $LogFile.
$LogWritten = file_put_contents($LogFile, 'Op-Act, '.$Time.', '.$SesHash3.': '.$entry.PHP_EOL, FILE_APPEND);
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$entry = NULL;
unset($entry);
return $LogWritten; }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to format an error entry & write it to the logfile.
function errorEntry($entry, $errorNumber, $die) {
// / Set variables.
global $Time, $LogFile, $SesHash3, $ApplicationName;
$LogWritten = FALSE;
// / Format the error number into a unique error identifier.
if (!is_numeric($errorNumber)) $errorNumber = $ApplicationName.'-###';
else $errorNumber = $ApplicationName.'-'.$errorNumber;
// / Format the input string into a log entry with the error number & write it to the $LogFile.
$LogWritten = file_put_contents($LogFile, 'ERROR!!! '.$Time.', '.$errorNumber.', '.$SesHash3.': '.$entry.PHP_EOL, FILE_APPEND);
if ($die) die('ERROR!!! '.$Time.' '.$errorNumber.': '.$entry.PHP_EOL);
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$entry = $errorNumber = $die = NULL;
unset($entry, $errorNumber, $die);
return $LogWritten; }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to set an echo variable that adjusts printed URL's to https when SSL is enabled.
function verifyEncryption() {
$EncryptionVerified = TRUE;
// / Determine if the connection is encrypted and adjust the $URLEcho accordingly.
if (!empty($_SERVER['HTTPS']) && $_SERVER['SERVER_PORT'] == 443) $URLEcho = 's';
else $URLEcho = '';
return array($EncryptionVerified, $URLEcho); }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to set or validate a Token so it can be used as a unique identifier for the session.
function verifyTokens($Token1, $Token2) {
// / Verify variables.
global $Salts1, $Salts2, $Salts3, $Salts4, $Salts5, $Salts6;
$TokensAreValid = TRUE;
// / Check that tokens are valid & set them if they are not.
if (!isset($Token1) or $Token1 === '' or strlen($Token1) < 19) $Token1 = hash('ripemd160', rand(0, 1000000000).rand(0, 1000000000));
if (isset($Token2)) if ($Token2 !== hash('ripemd160', $Token1.$Salts1.$Salts2.$Salts3.$Salts4.$Salts5.$Salts6)) $TokensAreValid = FALSE;
if (!isset($Token2) or $Token2 === '' or strlen($Token2) < 19) $Token2 = hash('ripemd160', $Token1.$Salts1.$Salts2.$Salts3.$Salts4.$Salts5.$Salts6);
return array($TokensAreValid, $Token1, $Token2); }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to verify that all required POST & GET inputs are properly sanitized.
function verifyInputs() {
// / Set variables.
$var = FALSE;
$InputsAreVerified = TRUE;
$GUI = $Color = $Language = $Token1 = $Token2 = $Height = $Width = $Rotate = $Bitrate = $Method = $Download = $UserFilename = $UserExtension = $Archive = $UserScanType = $ScanAll = $UserClamScan = $UserScanCoreScan = $var = '';
$variableIsSanitized = $ConvertSelected = $PDFWorkSelected = $FilesToArchive = $FilesToScan = $FilesToDelete = array();
$key = 0;
$ScanType = 'all';
// / Sanitize each variable as needed & build a list of error check results.
if (isset($_POST['noGui'])) $_GET['noGui'] = TRUE;
if (isset($_POST['filesToDelete'])) list ($FilesToDelete, $variableIsSanitized[$key++]) = sanitize($_POST['filesToDelete'], TRUE);
if (isset($_POST['language'])) list ($Language, $variableIsSanitized[$key++]) = sanitize($_POST['language'], TRUE);
if (isset($_GET['language'])) list ($Language, $variableIsSanitized[$key++]) = sanitize($_GET['language'], TRUE);
if (isset($_POST['color'])) list ($Color, $variableIsSanitized[$key++]) = sanitize($_POST['color'], TRUE);
if (isset($_GET['color'])) list ($Color, $variableIsSanitized[$key++]) = sanitize($_GET['color'], TRUE);
if (isset($_POST['gui'])) list ($GUI, $variableIsSanitized[$key++]) = sanitize($_POST['gui'], TRUE);
if (isset($_GET['gui'])) list ($GUI, $variableIsSanitized[$key++]) = sanitize($_GET['gui'], TRUE);
if (isset($_POST['Token1'])) list ($Token1, $variableIsSanitized[$key++]) = sanitize($_POST['Token1'], TRUE);
if (isset($_POST['Token2'])) list ($Token2, $variableIsSanitized[$key++]) = sanitize($_POST['Token2'], TRUE);
if (isset($_POST['height'])) list ($Height, $variableIsSanitized[$key++]) = sanitize($_POST['height'], TRUE);
if (isset($_POST['width'])) list ($Width, $variableIsSanitized[$key++]) = sanitize($_POST['width'], TRUE);
if (isset($_POST['rotate'])) list ($Rotate, $variableIsSanitized[$key++]) = sanitize($_POST['rotate'], TRUE);
if (isset($_POST['bitrate'])) list ($Bitrate, $variableIsSanitized[$key++]) = sanitize($_POST['bitrate'], TRUE);
if (isset($_POST['method'])) list ($Method, $variableIsSanitized[$key++]) = sanitize($_POST['method'], TRUE);
if (isset($_POST['download'])) list ($Download, $variableIsSanitized[$key++]) = sanitize($_POST['download'], TRUE);
if (isset($_POST['archive'])) list ($Archive, $variableIsSanitized[$key++]) = sanitize($_POST['archive'], TRUE);
if (isset($_POST['extension'])) list ($UserExtension, $variableIsSanitized[$key++]) = sanitize($_POST['extension'], TRUE);
if (isset($_POST['filesToArchive'])) list ($FilesToArchive, $variableIsSanitized[$key++]) = sanitize($_POST['filesToArchive'], TRUE);
if (isset($_POST['archextension'])) list ($UserExtension, $variableIsSanitized[$key++]) = sanitize($_POST['archextension'], TRUE);
if (isset($_POST['userfilename'])) list ($UserFilename, $variableIsSanitized[$key++]) = sanitize($_POST['userfilename'], TRUE);
if (isset($_POST['userconvertfilename'])) list ($UserFilename, $variableIsSanitized[$key++]) = sanitize($_POST['userconvertfilename'], TRUE);
if (isset($_POST['pdfworkSelected'])) list ($PDFWorkSelected, $variableIsSanitized[$key++]) = sanitize($_POST['pdfworkSelected'], TRUE);
if (isset($_POST['convertSelected'])) list ($ConvertSelected, $variableIsSanitized[$key++]) = sanitize($_POST['convertSelected'], TRUE);
if (isset($_POST['pdfextension'])) list ($UserExtension, $variableIsSanitized[$key++]) = sanitize($_POST['pdfextension'], TRUE);
if (isset($_POST['userpdfconvertfilename'])) list ($UserFilename, $variableIsSanitized[$key++]) = sanitize($_POST['userpdfconvertfilename'], TRUE);
if (isset($_POST['scanallbutton'])) list ($ScanAll, $variableIsSanitized[$key++]) = sanitize($_POST['scanallbutton'], TRUE);
if (isset($_POST['scantype'])) list ($UserScanType, $variableIsSanitized[$key++]) = sanitize($_POST['scantype'], TRUE);
if (isset($_POST['clamscanbutton'])) list ($UserClamScan, $variableIsSanitized[$key++]) = sanitize($_POST['clamscanbutton'], TRUE);
if (isset($_POST['scancorebutton'])) list ($UserScanCoreScan, $variableIsSanitized[$key++]) = sanitize($_POST['scancorebutton'], TRUE);
if (isset($_POST['filesToScan'])) list ($FilesToScan, $variableIsSanitized[$key++]) = sanitize($_POST['filesToScan'], TRUE);
// / Handle when a user submits User Virus Scan options.
if (isset($_POST['clamScanButton']) && isset($_POST['filesToScan'])) $ScanType = 'clamav';
if (isset($_POST['scancorebutton']) && isset($_POST['filesToScan'])) $ScanType = 'scancore';
if (isset($_POST['scanallbutton']) && isset($_POST['filesToScan'])) $ScanType = 'all';
// / Check the list of error check results and see if any errors occured.
foreach ($variableIsSanitized as $var) if (!$var) ($InputsAreVerified = FALSE);
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$variableIsSanitized = $key = $var = NULL;
unset($variableIsSanitized, $key, $var);
return array($InputsAreVerified, $GUI, $Color, $Language, $Token1, $Token2, $Height, $Width, $Rotate, $Bitrate, $Method, $Download, $UserFilename, $UserExtension, $FilesToArchive, $PDFWorkSelected, $ConvertSelected, $FilesToScan, $FilesToDelete, $UserScanType); }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to set the styles to use for the session.
function verifyColors($ButtonStyle) {
// / Set variables.
global $ButtonStyle, $Color, $SupportedColors, $AllowUserSelectableColor, $ColorToUse, $GreenButtonCode, $BlueButtonCode, $RedButtonCode, $DefaultButtonCode;
$ColorsAreSet = FALSE;
$ColorToUse = 'blue';
$ButtonStyle = strtolower($ButtonStyle);
$ButtonCode = $DefaultButtonCode;
$validColors = array('green', 'blue', 'red', 'grey');
// / Make sure $SupportedColors is valid.
if (!isset($SupportedColors) or !is_array($SupportedColors)) $SupportedColors = $validColors;
// / Make sure the Default Color is valid.
if (isset($ButtonStyle)) if (in_array($ButtonStyle, $SupportedColors)) $ColorToUse = $ButtonStyle;
// / If allowed and if specified, detect the users specified color and set that as the color to use.
if (isset($AllowUserSelectableColor)) {
if ($AllowUserSelectableColor) if (isset($Color)) if (in_array($Color, $SupportedColors)) {
$ColorToUse = $Color; }
if (!$AllowUserSelectableColor) $ButtonStyle = $DefaultColor; }
// / Set the $Color variable to whatever the current color is so the next page will use the same one.
$_GET['color'] = $ColorToUse;
// / Validate the desired color and set it as the color to use if possible.
if (in_array($ColorToUse, $validColors)) {
$ColorsAreSet = TRUE;
if ($ColorToUse === 'green') $ButtonCode = $GreenButtonCode;
if ($ColorToUse === 'blue') $ButtonCode = $BlueButtonCode;
if ($ColorToUse === 'red') $ButtonCode = $RedButtonCode;
if ($ColorToUse === 'grey') $ButtonCode = $DefaultButtonCode; }
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$validColors = NULL;
unset($validColors);
return array($ColorsAreSet, $ButtonCode); }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to set the GUI to use for the session.
function verifyGui() {
// / Set variables.
global $GUI, $DefaultGui, $SupportedGuis, $AllowUserSelectableGui, $GuiFiles, $GuiDir, $GuiResourcesDir, $GuiImageDir, $GuiCSSDir, $GuiJSDir, $GuiHeaderFile, $GuiFooterFile, $GuiUI1File, $GuiUI2File, $GreenButtonCode, $BlueButtonCode, $RedButtonCode, $DefaultButtonCode, $Font;
$defaultGui = $reqFile = $variableIsSanitized = FALSE;
$GuiIsSet = TRUE;
$GuiToUse = 'Default';
$GuiFiles = $guiFiles = array();
$defaultGuis = array('Default');
// / Make sure $SupportedGuis is valid.
if (!isset($SupportedGuis) or !is_array($SupportedGuis)) $SupportedGuis = $defaultGuis;
// / Make sure the Default GUI is valid.
if (isset($DefaultGui)) if (in_array($DefaultGui, $SupportedGuis)) $GuiToUse = $DefaultGui;
// / If allowed and if specified, detect the users specified GUI and set that as the GUI to use.
if (isset($AllowUserSelectableGui)) {
if ($AllowUserSelectableGui) if (isset($GUI)) if (in_array($GUI, $SupportedGuis)) {
$GuiToUse = $GUI; }
if (!$AllowUserSelectableGui) $GuiToUse = $DefaultGui; }
// / Set the $GUI variable to whatever the current GUI is so the next page will use the same one.
$_GET['gui'] = $GuiToUse;
// / Set the variables to a URL safe relative path to required UI files.
$GuiDir = 'UI/'.$GuiToUse.'/';
$StyleCoreFile = $GuiDir.'styleCore.php';
$GuiHeaderFile = $GuiDir.'header.php';
$GuiFooterFile = $GuiDir.'footer.php';
$GuiUI1File = $GuiDir.'convertGui1.php';
$GuiUI2File = $GuiDir.'convertGui2.php';
$GuiResourcesDir = $GuiDir.'Resources/';
$GuiImageDir = $GuiResourcesDir.'Image/';
$GuiCSSDir = $GuiResourcesDir.'CSS/';
$GuiJSDir = $GuiResourcesDir.'JS/';
$guiFiles = array($GuiHeaderFile, $GuiFooterFile, $GuiUI1File, $GuiUI2File, $StyleCoreFile);
// / Verify that the required GUI folder exists.
if (is_dir($GuiDir)) $GuiIsSet = TRUE;
// / Verify that required GUI files exist.
foreach ($guiFiles as $reqFile) if (file_exists($reqFile)) array_push($GuiFiles, $reqFile);
// / Determine if the styleCore.php file is part of the desired GUI, and load it if required.
if (in_array($StyleCoreFile, $GuiFiles)) {
// / Load the styleCore.php file.
require_once($StyleCoreFile);
// / Set the variables for required color data.
$GreenButtonCode = $greenButtonCode;
$BlueButtonCode = $blueButtonCode;
$RedButtonCode = $redButtonCode;
$DefaultButtonCode = $defaultButtonCode; }
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$defaultGuis = $reqFile = $guiFiles = $greenButtonCode = $blueButtonCode = $redButtonCode = $defaultButtonCode = NULL;
unset($defaultGuis, $reqFile, $guiFiles, $greenButtonCode, $blueButtonCode, $redButtonCode, $defaultButtonCode);
return array($GuiIsSet, $GuiToUse, $GuiDir, $GuiFiles); }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to set the language to use for the session.
function verifyLanguage() {
// / Set variables.
global $Language, $DefaultLanguage, $SupportedLanguages, $AllowUserSelectableLanguage, $LanguageFiles, $GuiDir, $LanguageDir, $LanguageStringsFile, $Language;
$defaultLanguages = $reqFile = $variableIsSanitized = FALSE;
$LanguageIsSet = TRUE;
$LanguageToUse = 'en';
$LanguageFiles = $languageFiles = array();
$defaultLanguages = array('en', 'fr', 'es', 'zh', 'hi', 'ar', 'ru', 'uk', 'bn', 'de', 'ko', 'it', 'pt');
// / Make sure $SupportedLanguages is valid.
if (!isset($SupportedLanguages) or !is_array($SupportedLanguages)) $SupportedLanguages = $defaultLanguages;
// / Make sure the Default Language is valid.
if (isset($DefaultLanguage)) if (in_array($DefaultLanguage, $SupportedLanguages)) $LanguageToUse = $DefaultLanguage;
// / If allowed and if specified, detect the users specified language and set that as the language to use.
if (isset($AllowUserSelectableLanguage)) {
if ($AllowUserSelectableLanguage) if (isset($Language)) if (in_array($Language, $SupportedLanguages)) {
$LanguageToUse = $Language; }
if (!$AllowUserSelectableLanguage) $LanguageToUse = $DefaultLanguage; }
// / Set the $Language variable to whatever the current language is so the next page will use the same one.
$_GET['language'] = $LanguageToUse;
// / Set the variables to required UI files.
$LanguageDir = $GuiDir.'Languages/'.$LanguageToUse.'/';
$LanguageStringsFile = $LanguageDir.'languageStrings.php';
$languageFiles = array($LanguageStringsFile);
// / Verify that the required langauge folder exists.
if (!is_dir($LanguageDir)) $LanguageIsSet = FALSE;
// / Verify that required language files exist.
if (file_exists($LanguageStringsFile)) $LanguageIsSet = TRUE;
foreach ($languageFiles as $reqFile) if (file_exists($reqFile)) array_push($LanguageFiles, $reqFile);
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$defaultLanguages = $reqFile = $variableIsSanitized = $languageFiles = NULL;
unset($defaultLanguages, $reqFile, $variableIsSanitized, $languageFiles);
return array($LanguageIsSet, $LanguageToUse, $LanguageDir, $LanguageFiles); }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to set the global variables for the session.
function verifyGlobals() {
// / Set global variables to be used through the entire application.
global $URL, $URLEcho, $HRConvertVersion, $Date, $Time, $SesHash, $SesHash2, $SesHash3, $SesHash4, $CoreLoaded, $ConvertDir, $InstLoc, $ConvertTemp, $ConvertTempDir, $ConvertGuiCounter1, $DefaultApps, $RequiredDirs, $RequiredIndexes, $DangerousFiles, $Allowed, $ArchiveArray, $DearchiveArray, $DocumentArray, $SpreadsheetArray, $PresentationInputArray, $PresentationOutputArray, $XPSInputArray, $XPSOutputArray, $ImageArray, $MediaInputArray, $MediaOutputArray, $VideoInputArray, $VideoOutputArray, $StreamArray, $DrawingArray, $ModelArray, $SubtitleInputArray, $SubtitleOutputArray, $PDFWorkArr, $ConvertLoc, $DirSep, $SupportedConversionTypes, $Lol, $Lolol, $Append, $PathExt, $ConsolidatedLogFileName, $ConsolidatedLogFile, $Alert, $Alert1, $Alert2, $Alert3, $FCPlural, $FCPlural1, $FCPlural2, $FCPlural3, $UserClamLogFile, $UserClamLogFileName, $UserScanCoreLogFile, $UserScanCoreFileName, $SpinnerStyle, $SpinnerColor, $FullURL, $ServerRootDir, $StopCounter, $SleepTimer, $PermissionLevels, $ApacheUser, $File, $HeaderDisplayed, $UIDisplayed, $FooterDisplayed, $LanguageStringsLoaded, $GUIDisplayed, $Version, $GUIDirection, $SupportedFormatCount, $GUIAlignment, $GreenButtonCode, $BlueButtonCode, $RedButtonCode, $DefaultButtonCode, $UserArchiveArray, $UserDearchiveArray, $UserDocumentArray, $UserSpreadsheetArray, $UserXPSInputArray, $UserXPSOutputArray, $UserPresentationInputArray, $UserPresentationOutputArray, $UserImageArray, $UserMediaInputArray, $UserMediaOutputArray, $UserVideoInputArray, $UserVideoOutputArray, $UserStreamArray, $UserDrawingArray, $UserModelArray, $UserSubtitleInputArray, $UserSubtitleOutputArray, $UserPDFWorkArr, $RetryCount, $DocumentEngineSleepTimer, $HomeLoc, $ProprietaryLoc, $RequiredCleanupFolders, $PathToUnoconv, $UsePatchedDocumentEngine;
// / Application related variables.
putenv('HOME='.$HomeLoc);
$HRConvertVersion = 'v3.4.9';
$GlobalsAreVerified = FALSE;
$CoreLoaded = TRUE;
$SleepTimer = 0;
$StopCounter = $RetryCount;
$PermissionLevels = 0755;
$ApacheUser = 'www-data';
// / Convinience variables.
$DirSep = DIRECTORY_SEPARATOR;
$Lol = PHP_EOL;
$Lolol = $Lolol;
$Append = FILE_APPEND;
$PathExt = PATHINFO_EXTENSION;
// / UI Related variables.
$ConvertGuiCounter1 = 0;
$File = $FCPlural = $FCPlural1 = $FCPlural2 = $FCPlural3 = $GreenButtonCode = $BlueButtonCode = $RedButtonCode = $DefaultButtonCode = '';
$HeaderDisplayed = $UIDisplayed = $FooterDisplayed = $LanguageStringsLoaded = $MediaOutputArray = $GUIDiInputsplayed = $VideoOutputArray = FALSE;
$GUIDirection = 'ltr';
$GUIAlignment = 'left';
$Alert = 'Cannot convert this file! Try changing the name.';
$Alert1 = 'Cannot perform a virus scan on this file!';
$Alert2 = 'File Link Copied to Clipboard!';
$Alert3 = 'Operation Failed!';
// / Security related variables.
$DefaultApps = array('.', '..');
$DangerousFiles = array('.js', '.php', '.html', '.css', '.phar', '..', 'index.php', 'index.html', '--');
// / URL related variables.
$subDir = sanitizeString(str_replace($ServerRootDir.$DirSep, '', $InstLoc), FALSE);
$partURL = sanitizeString($URL.'/'.$subDir, FALSE);
$FullURL = 'http'.$URLEcho.'://'.$partURL;
// / Directory related variables.
$convertDir0 = sanitizeString($ConvertLoc.$DirSep.$SesHash, FALSE);
$ConvertDir = sanitizeString($convertDir0.$DirSep.$SesHash2.$DirSep, FALSE);
$ConvertTemp = sanitizeString($InstLoc.$DirSep.'DATA', FALSE);
$convertTempDir0 = sanitizeString($ConvertTemp.$DirSep.$SesHash, FALSE);
$ConvertTempDir = sanitizeString($convertTempDir0.$DirSep.$SesHash2.$DirSep, FALSE);
$RequiredDirs = array($HomeLoc, $convertDir0, $ConvertDir, $ConvertTemp, $convertTempDir0, $ConvertTempDir);
$RequiredIndexes = array($ConvertTemp, $convertTempDir0, $ConvertTempDir);
$RequiredCleanupFolders = array($InstLoc.$DirSep.'.cache', $InstLoc.$DirSep.'.config', $ProprietaryLoc.$DirSep.'.cache', $ProprietaryLoc.$DirSep.'.config');
$PathToUnoconv = $InstLoc.$DirSep.'Resources'.$DirSep.'Unoconv'.$DirSep.'unoconv';
if (!$UsePatchedDocumentEngine) $PathToUnoconv = $DirSep.'usr'.$DirSep.'bin'.$DirSep.'unoconv';
// / A/V related variables.
$UserClamLogFileName = 'User_ClamScan_Virus_Scan_Report.txt';
$UserClamLogFile = $ConvertDir.$UserClamLogFileName;
$UserScanCoreFileName = 'User_ScanCore_Virus_Scan_Report.txt';
$UserScanCoreLogFile = $ConvertDir.$UserScanCoreFileName;
$ConsolidatedLogFileName = 'User_Consolidated_Virus_Scan_Report.txt';
$ConsolidatedLogFile = $ConvertTempDir.$ConsolidatedLogFileName;
// / Format related variables.
$ArchiveArray = $DearchiveArray = $DocumentArray = $SpreadsheetArray = $PresentationInputArray = $PresentationOutputArray = $XPSInputArray = $XPSOutputArray = $ImageArray = $MediaInputArray = $MediaOutputArray = $VideoInputArray = $VideoOutputArray = $StreamArray = $DrawingArray = $ModelArray = $SubtitleArray = $PDFWorkArr = $allArrays = array();
if (in_array('Archive', $SupportedConversionTypes)) $ArchiveArray = $UserArchiveArray;
if (in_array('Archive', $SupportedConversionTypes)) $DearchiveArray = $UserDearchiveArray;
if (in_array('Document', $SupportedConversionTypes)) $DocumentArray = $UserDocumentArray;
if (in_array('Document', $SupportedConversionTypes)) $SpreadsheetArray = $UserSpreadsheetArray;
if (in_array('Document', $SupportedConversionTypes)) $XPSInputArray = $UserXPSInputArray;
if (in_array('Document', $SupportedConversionTypes)) $XPSOutputArray = $UserXPSOutputArray;
if (in_array('Document', $SupportedConversionTypes)) $PresentationInputArray = $UserPresentationInputArray;
if (in_array('Document', $SupportedConversionTypes)) $PresentationOutputArray = $UserPresentationOutputArray;
if (in_array('Image', $SupportedConversionTypes)) $ImageArray = $UserImageArray;
if (in_array('Audio', $SupportedConversionTypes)) $MediaInputArray = $UserMediaInputArray;
if (in_array('Audio', $SupportedConversionTypes)) $MediaOutputArray = $UserMediaOutputArray;
if (in_array('Video', $SupportedConversionTypes)) $VideoInputArray = $UserVideoInputArray;
if (in_array('Video', $SupportedConversionTypes)) $VideoOutputArray = $UserVideoOutputArray;
if (in_array('Stream', $SupportedConversionTypes) && in_array('Audio', $SupportedConversionTypes)) $StreamArray = $UserStreamArray;
if (in_array('Drawing', $SupportedConversionTypes)) $DrawingArray = $UserDrawingArray;
if (in_array('Model', $SupportedConversionTypes)) $ModelArray = $UserModelArray;
if (in_array('Subtitle', $SupportedConversionTypes)) $SubtitleInputArray = $UserSubtitleInputArray;
if (in_array('Subtitle', $SupportedConversionTypes)) $SubtitleOutputArray = $UserSubtitleOutputArray;
if (in_array('OCR', $SupportedConversionTypes) && in_array('Document', $SupportedConversionTypes)) $PDFWorkArr = $UserPDFWorkArr;
$allArrays = [
$ArchiveArray, $DearchiveArray, $DocumentArray, $SpreadsheetArray,
$PresentationInputArray, $PresentationOutputArray, $ImageArray,
$MediaInputArray, $MediaOutputArray, $VideoInputArray, $VideoOutputArray,
$StreamArray, $DrawingArray, $ModelArray, $SubtitleInputArray, $PDFWorkArr,
$XPSInputArray, $XPSOutputArray ];
$Allowed = array_unique(array_merge(...$allArrays));
$SupportedFormatCount = count($Allowed);
// / Perform a version integrity check.
if ($HRConvertVersion === $Version) $GlobalsAreVerified = TRUE;
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$convertDir0 = $convertTempDir0 = $subDir = $partURL = $allArrays = NULL;
unset($convertDir0, $convertTempDir0, $subDir, $partURL, $allArrays);
return array($GlobalsAreVerified, $CoreLoaded); }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to sanitize & return the extension to a specified file.
function getExtension($pathToFile) {
// / Set variables.
global $PathExt;
$Pathinfo = '';
$pathinfoCleaned = FALSE;
list ($pathinfo, $pathinfoCleaned) = sanitize(pathinfo(strtolower($pathToFile), $PathExt), TRUE);
if ($pathinfoCleaned) $Pathinfo = trim($pathinfo);
else errorEntry('Could not process extension for file '.$pathToFile.'!', 300, FALSE);
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$pathToFile = $pathinfoCleaned = $pathinfo = NULL;
unset($pathToFile, $pathinfoCleaned, $pathinfo);
return $Pathinfo; }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to return the filesize of a specified file.
function getFilesize($File) {
// / Set variables.
$Size = @filesize($File);
// / Determine the most efficient unit of measure to represent the specified value in.
if ($Size < 1024) $Size = $Size." Bytes";
elseif (($Size < 1048576) && ($Size > 1023)) $Size = round($Size / 1024, 1)." KB";
elseif (($Size < 1073741824) && ($Size > 1048575)) $Size = round($Size / 1048576, 1)." MB";
else $Size = round($Size/1073741824, 1)." GB";
return $Size; }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to sanitize & verify an array of files.
function getFiles($pathToFiles) {
// / Set variables.
global $DangerousFiles, $DirSep;
$Files = $dirtyFileArr = array();
if (is_dir($pathToFiles)) $dirtyFileArr = @scandir($pathToFiles);
// / Iterate through each detected file & make sure it's not dangerous before adding it to the output array.
foreach ($dirtyFileArr as $dirtyFile) {
$dirtyExt = getExtension($pathToFiles.$DirSep.$dirtyFile);
// / Add the selected file to the array of clean files only if it is safe to handle.
if (!in_array(strtolower($dirtyExt), $DangerousFiles) && !is_dir($pathToFiles.$DirSep.$dirtyFile)) array_push($Files, $dirtyFile);
else if ($dirtyExt === '.' or $dirtyExt === '..') errorEntry('Could not display file '.$dirtyFile.'!', 400, FALSE); }
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$dirtyFile = $pathToFiles = $dirtyFileArr = $dirtyExt = NULL;
unset($dirtyFile, $pathToFiles, $dirtyFileArr, $dirtyExt);
return $Files; }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to return the file time of a specified symlink.
function symlinkmtime($symlinkPath) {
// / Set variables.
$Stat = @lstat($symlinkPath);
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$symlinkPath = NULL;
unset($symlinkPath);
return isset($Stat['mtime']) ? $Stat['mtime'] : NULL; }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to return the file time of a specified file.
// / Only returns a value if the specified file exists.
function fileTime($filePath) {
if (file_exists($filePath)) $Stat = @filemtime($filePath);
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$filePath = NULL;
unset($filePath);
return $Stat; }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to test if a folder is empty.
// / Returns TRUE when a folder is empty.
// / Returns FALSE when a folder is not empty.
function is_dir_empty($dir) {
// / Set variables.
$Check = TRUE;
// / Make sure the selected directory is actually a directory.
if (is_dir($dir)) {
// / Gather the contents of the directory.
$contents = scandir($dir);
// / Iterate through the contents of the directory & break once any valid file is found.
foreach ($contents as $content) if ($content == '.' or $content == '..') $Check = FALSE; }
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$dir = $contents = $content = NULL;
unset($dir, $contents, $content);
return $Check; }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to scan an input file or folder for viruses with ClamAV.
function virusScan($path) {
// / Set variables.
global $Verbose, $ClamLogFile, $AllowUserVirusScan, $Lol, $Lolol, $ApplicationName;
$ScanComplete = TRUE;
$VirusFound = FALSE;
$returnData = '';
$returnData = shell_exec(str_replace(' ', ' ', str_replace(' ', ' ', 'clamscan -r '.$path.' | grep FOUND >> '.$ClamLogFile)));
$clamLogFileDATA = @file_get_contents($ClamLogFile);
// / Check if ClamAV found an infection in the specified file.
if (strpos($clamLogFileDATA, 'Virus Detected') !== FALSE or strpos($clamLogFileDATA, 'FOUND') !== FALSE) {
$ScanComplete = $virusFound = TRUE;
// / If the specified file exists, is infected, is not a directory, & $AllowUserVirusScan is set to FALSE then delete the infected file.
if (file_exists($path)) if (is_file($path) && !is_dir($path) && !$AllowUserVirusScan) @unlink($path);
errorEntry('There were potentially infected files detected at '.$path.'!', 500, FALSE);
errorEntry('ClamAV output the following: '.str_replace($Lol, $Lol.' ', str_replace($Lolol, $Lol, str_replace($Lolol, $Lol, trim($returnData)))), 501, TRUE); }
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$returnData = $clamLogFileDATA = $path = NULL;
unset($returnData, $clamLogFileDATA, $path);
return array($ScanComplete, $VirusFound); }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to create required directories if they do not exist.
function verifyRequiredDirs() {
// / Set variables.
global $ConvertLoc, $RequiredDirs, $RequiredIndexes, $RequiredCleanupFolders, $Time, $LogFile, $Verbose, $PermissionLevels, $DirSep, $InstLoc;
$RequiredDirsExist = FALSE;
// / If the $ConvertLoc does not exist we stop execution rather than create one.
if (!is_dir($ConvertLoc)) errorEntry('The specified Data Storage Directory does not exist at '.$ConvertLoc.'!', 1000, TRUE);
// / Iterate through the array of required directories.
foreach ($RequiredDirs as $requiredDir) {
// / Check that the currently selected directory exists.
if (!is_dir($requiredDir)) {
if ($Verbose) logEntry('Created a directory at '.$requiredDir.'.');
// / Try to create the currently selected directory.
@mkdir($requiredDir, $PermissionLevels); }
// / Re-check to see if our attempt to create the directory was successful & log the result.
if (is_dir($requiredDir)) $RequiredDirsExist = TRUE;
else errorEntry('Could not create a directory at '.$requiredDir.'!', 1001, TRUE); }
// / Make sure that each required directory has an index.html file for document root protection.
foreach ($RequiredIndexes as $requiredIndex) @copy($InstLoc.$DirSep.'index.html', $requiredIndex.$DirSep.'index.html');
foreach ($RequiredCleanupFolders as $requiredCleanupFolder) if (file_exists($requiredCleanupFolder)) cleanFiles($requiredCleanupFolder);
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$requiredDir = $requiredIndex = $requiredCleanupFolder = NULL;
unset($requiredDir, $requiredIndex, $requiredCleanupFolder);
return array($RequiredDirsExist, $RequiredDirs); }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to clean a selection of files.
// / Recursively deletes files.
// / This function is extremely dangerous! Please handle with care.
function cleanFiles($path) {
// / Set variables.
global $ConvertLoc, $ConvertTemp, $DefaultApps, $DirSep;
$variableIsSanitized = $i = $f = $CleanSuccess = $pathCheck = $loopCheck = FALSE;
list ($path, $variableIsSanitized) = sanitize($path, FALSE);
// / Make sure the selected directory is actually a directory.
if ($variableIsSanitized && is_dir($path)) {
// / Make sure the $ApacheUser owns the selected directory and that is has the correct permissions.
// / Iterate through each file object in the directory.
$i = array_diff(scandir($path), array('..', '.'));
foreach ($i as $f) {
// / If the selected file object is a file, delete it.
if (is_file($path.$DirSep.$f) && !in_array(basename($path.$DirSep.$f), $DefaultApps)) @unlink($path.$DirSep.$f);
// / If the selected file object is a directory, try to delete it.
if (is_dir($path.$DirSep.$f) && !in_array(basename($path.$DirSep.$f), $DefaultApps) && is_dir_empty($path)) @rmdir($path.$DirSep.$f);
// / If the selected file object is a directory that still exists, run this function on it to remove any file objects it contains.
if (is_dir($path.$DirSep.$f) && !in_array(basename($path.$DirSep.$f), $DefaultApps) && !is_dir_empty($path)) $loopCheck = cleanFiles($path.$DirSep.$f); }
// / Once all file objects in the selected directory have been deleted, attempt to delete the selected directory.
if ($path !== $ConvertLoc && $path !== $ConvertTemp) @rmdir($path); }
// / Check if the function was successful. Note that $ConvertLoc and $ConvertTemp locations are not deleted..
$pathCheck = is_dir($path);
if ($pathCheck) if (is_dir_empty($path)) $CleanSuccess = TRUE;
if (!$pathCheck) $CleanSuccess = TRUE;
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$path = $i = $f = $variableIsSanitized = $pathCheck = $loopCheck = NULL;
unset($path, $i, $f, $variableIsSanitized, $pathCheck, $loopCheck);
return $CleanSuccess; }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to clean up old files in the $TempLoc.
function cleanTempLoc() {
// / Set variables.
global $ConvertTemp, $DeleteThreshold, $DefaultApps, $DirSep, $PermissionLevels;
$TempLocDeepCleaned = FALSE;
$CleanedTempLoc = $loopCheck = TRUE;
// / Make sure the directory to be scanned exists.
if (file_exists($ConvertTemp)) {
$dFiles = array_diff(scandir($ConvertTemp), array('..', '.'));
$now = time();
// / Iterate through each subfolder in the directory.
foreach ($dFiles as $dFile) {
// / Validate the folder.
if (in_array($dFile, $DefaultApps)) continue;
$dFilePath = $ConvertTemp.$DirSep.$dFile;
if ($dFilePath == $ConvertTemp.'/index.html') continue;
// / See if the folder is due for deletion.
if ($now - fileTime($dFilePath) > ($DeleteThreshold * 60)) {
// / If the folder is due to be deleted, recursively delete it.
if (is_dir($dFilePath)) {
$TempLocDeepCleaned = TRUE;
@chmod ($dFilePath, $PermissionLevels);
$loopCheck = cleanFiles($dFilePath);
if (is_dir_empty($dFilePath)) @rmdir($dFilePath); } }
// / Check if the most recent iteration of the loop was successful.
if (!$loopCheck) $CleanedTempLoc = FALSE; $loopCheck = TRUE; } }
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$dFiles = $dFile = $dFilePath = $now = $loopCheck = NULL;
unset($dFiles, $dFile, $dFilePath, $now, $loopCheck);
return array($CleanedTempLoc, $TempLocDeepCleaned); }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to clean up old files in the $ConvertLoc.
function cleanConvertLoc() {
// / Set variables.
global $ConvertLoc, $DeleteThreshold, $DefaultApps, $DirSep, $PermissionLevels;
$ConvertLocDeepCleaned = FALSE;
$CleanedConvertLoc = $loopCheck = TRUE;
// / Make sure the directory to be scanned exists.
if (file_exists($ConvertLoc)) {
$dFiles = array_diff(scandir($ConvertLoc), array('..', '.'));
$now = time();
// / Iterate through each subfolder in the directory.
foreach ($dFiles as $dFile) {
// / Validate the folder.
if (in_array($dFile, $DefaultApps)) continue;
$dFilePath = $ConvertLoc.$DirSep.$dFile;
// / See if the folder is due for deletion.
if ($now - fileTime($dFilePath) > ($DeleteThreshold * 60)) {
// / If the folder is due to be deleted, recursively delete it.
if (is_dir($dFilePath)) {
$ConvertLocDeepCleaned = TRUE;
@chmod ($dFilePath, $PermissionLevels);
$loopCheck = cleanFiles($dFilePath);
if (is_dir_empty($dFilePath)) @rmdir($dFilePath); } }
// / Check if the most recent iteration of the loop was successful.
if (!$loopCheck) $CleanedConvertLoc = FALSE; $loopCheck = TRUE; } }
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$dFiles = $dFile = $dFilePath = $now = $loopCheck = NULL;
unset($dFiles, $dFile, $dFilePath, $now, $loopCheck);
return array($CleanedConvertLoc, $ConvertLocDeepCleaned); }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to verify that the Document Conversion Engine is installed & running.
function verifyDocumentConversionEngine() {
// / Set variables.
global $Verbose, $Lol, $Lolol, $ApacheUser, $DocumentEngineSleepTimer, $PathToUnoconv, $HomeLoc;
$DocEnginePID = 0;
$docEnginePIDCheck = $docEngineUserCheck = $DocumentEngineStarted = $installCheck = $okToStart = FALSE;
$returnData = $docEngineUser = '';
// / Determine if the Document Conversion Engine (Unoconv) is installed.
if (!file_exists($PathToUnoconv)) errorEntry('Could not verify the Document Conversion Engine installation at '.$PathToUnoconv.'!', 2000, TRUE);
else if ($Verbose) {
$installCheck = TRUE;
logEntry('Verified the Document Conversion Engine installation.'); }
// / If Unoconv is installed, check that the Unoconv listener (soffice.bin) is running.
if ($installCheck) {
// / Try to determine the PID for soffice.bin using pgrep.
$DocEnginePID = str_replace($Lol, '', str_replace($Lolol, $Lol, str_replace($Lolol, $Lol, trim(shell_exec('pgrep soffice.bin')))));
if ($Verbose) logEntry('The Document Conversion Engine PID is: '.str_replace($Lol, '', str_replace($Lolol, $Lol, str_replace($Lolol, $Lol, trim($DocEnginePID)))));
// / Parse the results of the pgrep call.
if ($DocEnginePID === 0 or $DocEnginePID === '' or $DocEnginePID === NULL or !$DocEnginePID) $docEnginePIDCheck = FALSE;
if ($DocEnginePID !== 0 && $DocEnginePID !== '' && $DocEnginePID !== NULL) $docEnginePIDCheck = TRUE;
// / Try to determine who owns the Unoconv Listener (soffice.bin) process using ps.
// / We need whoever owns the process to have read & write access to HRConvert2 data locations.
// / If the included rc.local script is used, this process should run at system startup as the root user.
// / For more information, please see the included INSTALLATION_INSTRUCTIONS.txt file.
$docEngineUser = str_replace($Lol, '', str_replace($Lolol, $Lol, str_replace($Lolol, $Lol, trim(shell_exec('ps -o user= -p'.$DocEnginePID)))));
if ($Verbose) logEntry('The Document Conversion Engine owner is: '.str_replace($Lol, '', str_replace($Lolol, $Lol, str_replace($Lolol, $Lol, trim($docEngineUser)))));
if ($docEngineUser === $ApacheUser or $docEngineUser === 'root') $docEngineUserCheck = TRUE;
// / Parse the results of the ps call.
// / We should only try to start the Document Conversion Engine only under certain circumstances.
// / When the $docEnginePIDCheck is FALSE. This indicates that Unoconv Listener (soffice.bin) is not running.
// / When the $docEnginePIDCheck is TRUE but the $docEngineUSerCheck is FALSE. This indicates that Unoconv Listener is running as the incorrect user.
if ($docEnginePIDCheck === FALSE) $okToStart = TRUE;
if ($docEnginePIDCheck === TRUE) if ($docEngineUserCheck === FALSE) $okToStart = TRUE;
// / Only start the Document Conversion Engine if it is not running, or running as the incorrect user.
if ($okToStart) {
// / Try to start the Document Conversion Engine.
if ($Verbose) logEntry('Starting the Document Conversion Engine.');
$returnData = exec('python3 '.$PathToUnoconv.' -l --verbose --user-profile='.$HomeLoc.' > /dev/null 2>&1 &');
sleep($DocumentEngineSleepTimer);
if ($Verbose && trim($returnData) !== '') logEntry('The Document Conversion Engine returned the following: '.str_replace($Lol, '', str_replace($Lolol, $Lol, str_replace($Lolol, $Lol, trim($returnData))))); } }
// / Try to determine the PID for soffice.bin using pgrep.
$DocEnginePID = str_replace($Lol, '', str_replace($Lolol, $Lol, str_replace($Lolol, $Lol, trim(shell_exec('pgrep soffice.bin')))));
if ($Verbose) logEntry('The Document Conversion Engine PID is: '.str_replace($Lol, '', str_replace($Lolol, $Lol, str_replace($Lolol, $Lol, trim($DocEnginePID)))));
// / Write the status of the Document Conversion Engine to the log file.
if ($DocEnginePID !== 0 && $DocEnginePID !== '' && $DocEnginePID !== NULL && $installCheck) {
$DocumentEngineStarted = TRUE;
if ($Verbose) logEntry('The Document Conversion Engine is running.'); }
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$returnData = $docEnginePIDCheck = $docEngineUserCheck = $docEngineUser = $installCheck = $okToStart = NULL;
unset($returnData, $docEnginePIDCheck, $docEngineUserCheck, $docEngineUser, $installCheck, $okToStart);
return array($DocumentEngineStarted, $DocEnginePID); }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to convert document formats.
function convertDocuments($pathname, $newPathname, $extension) {
// / Set variables.
global $Verbose, $Lol, $Lolol, $StopCounter, $SleepTimer, $XPSInputArray, $PathToUnoconv, $HomeLoc;
$ConversionSuccess = $ConversionErrors = FALSE;
$returnData = '';
$stopper = 0;
$sleepTime = $SleepTimer;
$arrayxpsi = array('xps', 'oxps');
$oldExtension = getExtension($pathname);
// / The following code verifies that the Document Conversion Engine is installed & running.
list ($documentEngineStarted, $documentEnginePID) = verifyDocumentConversionEngine();
if (!$documentEngineStarted) {
$ConversionErrors = TRUE;
errorEntry('Could not verify the Document Conversion Engine!', 7000, FALSE); }
else if ($Verbose) logEntry('Verified the Document Conversion Engine.');
// / The following code performs the actual document conversion.
if ($documentEngineStarted) {
if ($Verbose) logEntry('Converting document.');
// / This code will attempt the conversion up to $StopCounter number of times.
while (!file_exists($newPathname) && $stopper <= $StopCounter) {
// / If the last conversion attempt failed, wait a moment before trying again.
if ($stopper !== 0) sleep($sleepTime++);
if (in_array(strtolower($oldExtension), $arrayxpsi)) $returnData = shell_exec('xpstopdf '.$pathname.' '.$newPathname);
// / Attempt the conversion using Unoconv for all other files.
if (!in_array(strtolower($oldExtension), $arrayxpsi)) $returnData = shell_exec('python3 '.$PathToUnoconv.' --verbose --user-profile='.$HomeLoc.' -o '.$newPathname.' -f '.$extension.' '.$pathname);
// / Count the number of conversions to avoid infinite loops.
$stopper++;
// / Stop attempting the conversion after $StopCounter number of attempts.
if ($stopper === $StopCounter) {
$ConversionErrors = TRUE;
errorEntry('The document converter timed out!', 7001, FALSE); } }
// / Log the output of the operation to the logfile, if it is not blank.
if ($Verbose && trim($returnData) !== '') logEntry('Unoconv returned the following: '.$Lol.' '.str_replace($Lol, $Lol.' ', str_replace($Lolol, $Lol, str_replace($Lolol, $Lol, trim($returnData))))); }
if (file_exists($newPathname)) $ConversionSuccess = TRUE;
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$stopper = $pathname = $newPathname = $extension = $returnData = $documentEngineStarted = $documentEnginePID = $sleepTime = $oldExtension = $arrayxpsi = NULL;
unset($stopper, $pathname, $newPathname, $extension, $returnData, $documentEngineStarted, $documentEnginePID, $sleepTime, $oldExtension, $arrayxpsi);
return array($ConversionSuccess, $ConversionErrors); }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to convert image formats.
function convertImages($pathname, $newPathname, $height, $width, $rotate) {
// / Set variables.
global $Verbose, $Lol, $Lolol, $StopCounter, $SleepTimer;
$ConversionSuccess = $ConversionErrors = $imgMethod = FALSE;
$returnData = $wh = '';
$stopper = $whx = 0;
$sleepTime = $SleepTimer;
// / Validate the height, width, & rotate arguments.
if (!is_numeric($height) or $height === FALSE) $height = 0;
if (!is_numeric($width) or $width === FALSE) $width = 0;
if (!is_numeric($rotate) or $rotate === FALSE) '-rotate '.$rotate;
$wxh = $width.'x'.$height;
if ($wxh == '0x0' or $wxh =='x0' or $wxh == '0x' or $wxh == '0' or $wxh == '00' or $wxh == '' or $wxh == ' ') $wh = '';
else $wh = '-resize '.$wxh.' ';
if ($Verbose) logEntry('Converting image.');
// / This code will attempt the conversion up to $StopCounter number of times.
while (!file_exists($newPathname) && $stopper <= $StopCounter) {
// / If the last conversion attempt failed, wait a moment before trying again.
if ($stopper !== 0) sleep($sleepTime++);
// / Attempt the conversion.
$returnData = shell_exec('convert -background none '.$wh.$rotate.' '.$pathname.' '.$newPathname);
// / Count the number of conversions to avoid infinite loops.
$stopper++;
// / Stop attempting the conversion after $StopCounter number of attempts.
if ($stopper === $StopCounter) {
$ConversionErrors = TRUE;
errorEntry('The image converter timed out!', 8000, FALSE); } }
// / Log the output of the operation to the logfile, if it is not blank.
if ($Verbose && trim($returnData) !== '') logEntry('ImageMagick returned the following: '.$Lol.' '.str_replace($Lol, $Lol.' ', str_replace($Lolol, $Lol, str_replace($Lolol, $Lol, trim($returnData)))));
if (file_exists($newPathname)) $ConversionSuccess = TRUE;
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$returnData = $stopper = $pathname = $newPathname = $height = $width = $extension = $wxh = $rotate = $imgMethod = $wh = $sleepTime = NULL;
unset($returnData, $stopper, $pathname, $newPathname, $height, $width, $extension, $wxh, $rotate, $imgMethod, $wh, $sleepTime);
return array($ConversionSuccess, $ConversionErrors); }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to convert 3D model formats.
function convertModels($pathname, $newPathname) {
// / Set variables.
global $Verbose, $Lol, $Lolol, $StopCounter, $SleepTimer;
$ConversionSuccess = $ConversionErrors = FALSE;
$returnData = '';
$stopper = 0;
$sleepTime = $SleepTimer;
if ($Verbose) logEntry('Converting model.');
// / This code will attempt the conversion up to $StopCounter number of times.
while (!file_exists($newPathname) && $stopper <= $StopCounter) {
// / If the last conversion attempt failed, wait a moment before trying again.
if ($stopper !== 0) sleep($sleepTime++);
// / Attempt the conversion.
$returnData = shell_exec('xvfb-run -a /usr/bin/meshlabserver -i '.$pathname.' -o '.$newPathname);
// / Count the number of conversions to avoid infinite loops.
$stopper++;
// / Stop attempting the conversion after $StopCounter number of attempts.
if ($stopper === $StopCounter) {
$ConversionErrors = TRUE;
errorEntry('The model converter timed out!', 9000, FALSE); } }
// / Log the output of the operation to the logfile, if it is not blank.
if ($Verbose && trim($returnData) !== '') logEntry('Meshlab returned the following: '.$Lol.' '.str_replace($Lol, $Lol.' ', str_replace($Lolol, $Lol, str_replace($Lolol, $Lol, trim($returnData)))));
if (file_exists($newPathname)) $ConversionSuccess = TRUE;
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$returnData = $stopper = $pathname = $newPathname = NULL;
unset($returnData, $stopper, $pathname, $newPathname);
return array($ConversionSuccess, $ConversionErrors); }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to convert 2D vector drawing formats.
function convertDrawings($pathname, $newPathname) {
// / Set variables.
global $Verbose, $Lol, $Lolol, $StopCounter, $SleepTimer;
$ConversionSuccess = $ConversionErrors = FALSE;
$returnData = '';
$stopper = 0;
$sleepTime = $SleepTimer;
if ($Verbose) logEntry('Converting drawing.');
// / This code will attempt the conversion up to $StopCounter number of times.
while (!file_exists($newPathname) && $stopper <= $StopCounter) {
// / If the last conversion attempt failed, wait a moment before trying again.
if ($stopper !== 0) sleep($sleepTime++);
// / Attempt the conversion.
$returnData = shell_exec('dia '.$pathname.' -e '.$newPathname);
// / Count the number of conversions to avoid infinite loops.
$stopper++;
// / Stop attempting the conversion after $StopCounter number of attempts.
if ($stopper === $StopCounter) {
$ConversionErrors = TRUE;
errorEntry('The drawing converter timed out!', 10000, FALSE); } }
// / Log the output of the operation to the logfile, if it is not blank.
if ($Verbose && trim($returnData) !== '') logEntry('Dia returned the following: '.$Lol.' '.str_replace($Lol, $Lol.' ', str_replace($Lolol, $Lol, str_replace($Lolol, $Lol, trim($returnData)))));
if (file_exists($newPathname)) $ConversionSuccess = TRUE;
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$returnData = $stopper = $pathname = $newPathname = $sleepTime = NULL;
unset($returnData, $stopper, $pathname, $newPathname, $sleepTime);
return array($ConversionSuccess, $ConversionErrors); }
// / -----------------------------------------------------------------------------------
// / -----------------------------------------------------------------------------------
// / A function to convert video formats.
function convertVideos($pathname, $newPathname) {
// / Set variables.
global $Verbose, $Lol, $Lolol, $StopCounter, $SleepTimer;
$ConversionSuccess = $ConversionErrors = FALSE;
$returnData = '';
$stopper = 0;
$sleepTime = $SleepTimer;
if ($Verbose) logEntry('Converting video.');
// / This code will attempt the conversion up to $StopCounter number of times.
while (!file_exists($newPathname) && $stopper <= $StopCounter) {
// / If the last conversion attempt failed, wait a moment before trying again.
if ($stopper !== 0) sleep($sleepTime++);
// / Attempt the conversion.
$returnData = shell_exec('ffmpeg -i '.$pathname.' -c:v libx264 '.$newPathname);
// / Count the number of conversions to avoid infinite loops.
$stopper++;
// / Stop attempting the conversion after $StopCounter number of attempts.
if ($stopper === $StopCounter) {
$ConversionErrors = TRUE;
errorEntry('The video converter timed out!', 11000, FALSE); } }
// / Log the output of the operation to the logfile, if it is not blank.
if ($Verbose && trim($returnData) !== '') logEntry('Ffmpeg returned the following: '.$Lol.' '.str_replace($Lol, $Lol.' ', str_replace($Lolol, $Lol, str_replace($Lolol, $Lol, trim($returnData)))));
if (file_exists($newPathname)) $ConversionSuccess = TRUE;
// / Manually clean up sensitive memory. Helps to keep track of variable assignments.
$returnData = $stopper = $pathname = $newPathname = $sleepTime = NULL;
unset($returnData, $stopper, $pathname, $newPathname, $sleepTime);
return array($ConversionSuccess, $ConversionErrors); }