<?php /** * Copyright (C) 2021 Double Bastion LLC * * This file is part of Roundpin, which is licensed under the * GNU Affero General Public License Version 3.0. The license terms * are detailed in the "LICENSE.txt" file located in the root directory. */ session_start(); if (isset($_POST['s_ajax_call']) && ($_POST['s_ajax_call'] == $_SESSION['validate_s_access']) && isset($_POST['sipUser']) && $_POST['sipUser'] != '') { $sipUser = $_POST['sipUser']; try { $resmessage = ''; // Check for undefined error, multiple files, $_FILES corruption if (!isset($_FILES['uploadedFile']['error']) || is_array($_FILES['uploadedFile']['error'])) { throw new RuntimeException('Invalid parameters.'); } // Check $_FILES['upfile']['error'] value switch ($_FILES['uploadedFile']['error']) { case UPLOAD_ERR_OK: break; case UPLOAD_ERR_NO_FILE: throw new RuntimeException('No file sent.'); case UPLOAD_ERR_INI_SIZE: throw new RuntimeException('The file size limit was exceeded! Please choose a file with a smaller size!'); case UPLOAD_ERR_FORM_SIZE: throw new RuntimeException('The file size limit was exceeded! Please choose a file with a smaller size!'); default: throw new RuntimeException('Unknown error.'); } // Check file size (in bytes) if ($_FILES['uploadedFile']['size'] > 786432000) { throw new RuntimeException('Uploaded file size exceeds the limit of 750 MB.'); } // Check MIME Type $finfo = new finfo(FILEINFO_MIME_TYPE); if (false === $ext = array_search($finfo->file($_FILES['uploadedFile']['tmp_name']), array( 'aac' => 'audio/aac', 'abw' => 'application/x-abiword', 'arc' => 'application/x-freearc', 'avi' => 'video/x-msvideo', 'azw' => 'application/vnd.amazon.ebook', 'bin' => 'application/octet-stream', 'bmp' => 'image/bmp', 'bz' => 'application/x-bzip', 'bz2' => 'application/x-bzip2', 'cda' => 'application/x-cdf', 'csh' => 'application/x-csh', 'css' => 'text/css', 'csv' => 'text/csv', 'doc' => 'application/msword', 'docx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document', 'eot' => 'application/vnd.ms-fontobject', 'epub' => 'application/epub+zip', 'gz' => 'application/gzip', 'gif' => 'image/gif', 'htm' => 'text/html', 'html' => 'text/html', 'ico' => 'image/vnd.microsoft.icon', 'ics' => 'text/calendar', 'jar' => 'application/java-archive', 'jpeg' => 'image/jpeg', 'jpg' => 'image/jpeg', 'json' => 'application/json', 'jsonld' => 'application/ld+json', 'mid' => 'audio/midi', 'midi' => 'audio/midi', 'mp3' => 'audio/mpeg', 'mp4' => 'video/mp4', 'mpeg' => 'video/mpeg', 'mpkg' => 'application/vnd.apple.installer+xml', 'odp' => 'application/vnd.oasis.opendocument.presentation', 'ods' => 'application/vnd.oasis.opendocument.spreadsheet', 'odt' => 'application/vnd.oasis.opendocument.text', 'oga' => 'audio/ogg', 'ogv' => 'video/ogg', 'ogx' => 'application/ogg', 'opus' => 'audio/opus', 'otf' => 'font/otf', 'png' => 'image/png', 'pdf' => 'application/pdf', 'ppt' => 'application/vnd.ms-powerpoint', 'pptx' => 'application/vnd.openxmlformats-officedocument.presentationml.presentation', 'rar' => 'application/vnd.rar', 'rtf' => 'application/rtf', 'sh' => 'application/x-sh', 'swf' => 'application/x-shockwave-flash', 'tar' => 'application/x-tar', 'tif' => 'image/tiff', 'tiff' => 'image/tiff', 'ts' => 'video/mp2t', 'ttf' => 'font/ttf', 'txt' => 'text/plain', 'vsd' => 'application/vnd.visio', 'wav' => 'audio/wav', 'weba' => 'audio/webm', 'webm' => 'video/webm', 'webp' => 'image/webp', 'woff' => 'font/woff', 'woff2' => 'font/woff2', 'xhtml' => 'application/xhtml+xml', 'xls' => 'application/vnd.ms-excel', 'xlsx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', 'xml' => 'text/xml', 'xul' => 'application/vnd.mozilla.xul+xml', 'zip' => 'application/zip', '3gp' => 'video/3gpp', '3g2' => 'video/3gpp2', '7z' => 'application/x-7z-compressed', ), true )) { throw new RuntimeException('Invalid file format.'); } // Check if the uploaded file contains PHP or JavaScript code tags $upFileContent = file_get_contents($_FILES['uploadedFile']['tmp_name']); if ((strpos($upFileContent, "<?php") !== false) || (strpos($upFileContent, "<script") !== false)) { throw new RuntimeException('Invalid file type.'); } // Create the directories if they don't exist if (!is_dir('textchat')) { mkdir('textchat', 0700); } if (!is_dir('textchat/' . $sipUser)) { mkdir('textchat/' . $sipUser, 0700); } if (!is_dir('textchat/' . $sipUser . '/uploads')) { mkdir('textchat/' . $sipUser . '/uploads', 0700); } // Check if the name of the uploaded file is valid $nameWithoutExt = pathinfo($_FILES["uploadedFile"]["name"], PATHINFO_FILENAME); if (preg_match('/^[a-zA-Z0-9\-\_\.]+$/', $nameWithoutExt)) { // Check if a file with the same name already exists in the 'uploads' directory of that respective user if (!file_exists('textchat/' . $sipUser . '/uploads/' . basename($_FILES["uploadedFile"]["name"]))) { $upload_dir = 'textchat/' . $sipUser . '/uploads/'; $targetfile = $upload_dir . basename($_FILES["uploadedFile"]["name"]); // Scan the uploaded file with ClamAV if ClamAV is installed if (file_exists('/usr/bin/clamdscan')) { $clamdisrunning = exec("systemctl show -p ActiveState --value clamav-daemon"); if ($clamdisrunning == 'active') { $safePath = escapeshellarg($_FILES["uploadedFile"]['tmp_name']); $runclamdscan = 'clamdscan --fdpass --quiet ' . $safePath . ''; $resout = ''; $rescheck = 1; exec($runclamdscan, $resout, $rescheck); if ($rescheck == 0) { if (move_uploaded_file($_FILES["uploadedFile"]["tmp_name"], $targetfile)) { chmod($targetfile, 0600); } else { throw new RuntimeException('There was an error while uploading the file.'); } } else { unlink($safePath); throw new RuntimeException('The file contains a virus or other type of malware.'); } } else { throw new RuntimeException("The ClavAV antivirus is installed but clamav-daemon is not active and the uploaded file couldn't be scanned! Please check the status of clamav-daemon!"); } } else { if (move_uploaded_file($_FILES["uploadedFile"]["tmp_name"], $targetfile)) { chmod($targetfile, 0600); } else { throw new RuntimeException('There was an error while uploading the file.'); } } } else { throw new RuntimeException('A file with the same name, ' . basename($_FILES["uploadedFile"]["name"]) . ', has been already sent. Please send a different file or rename your file before sending it.'); } } else { throw new RuntimeException('The name of the uploaded file is not valid.'); } } catch (RuntimeException $e) { $resmessage = $e->getMessage(); } $respdata = ['error' => $resmessage]; echo json_encode($respdata); } else { header("Location: roundpin-login.php"); } ?>