2024-03-01 22:14:20 +01:00
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<?php
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function makePathSafe($userInput): string
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{
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// Keep only alphanumeric characters, underscores, and hyphens
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$safeString = preg_replace('/[^\w\-]/', '', $userInput);
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// Ensure no path traversal
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$safeString = str_replace('..', '_', $safeString);
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// Trim leading/trailing underscores
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$safeString = trim($safeString, '_');
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// Replace directory separator characters with underscores
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$safeString = str_replace(['/', '\\'], '_', $safeString);
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// Limit length for safety
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return substr($safeString, 0, 255);
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}
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function getIncomingFiles(): array
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{
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$files = $_FILES;
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$files2 = [];
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foreach ($files as $infoArr) {
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$filesByInput = [];
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foreach ($infoArr as $key => $valueArr) {
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if (is_array($valueArr)) { // file input "multiple"
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foreach ($valueArr as $i => $value) {
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$filesByInput[$i][$key] = $value;
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}
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} else { // -> string, normal file input
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$filesByInput[] = $infoArr;
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break;
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}
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}
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$files2 = array_merge($files2, $filesByInput);
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}
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$files3 = [];
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foreach ($files2 as $file) { // let's filter empty & errors
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if (!$file['error']) $files3[] = $file;
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}
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return $files3;
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}
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2024-04-11 10:36:40 +02:00
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function saveUploadedFileInDatabase($filePath, $fileType): bool
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2024-03-01 22:14:20 +01:00
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{
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global $mysqli;
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$stmt = $mysqli->prepare("INSERT INTO Files (Path, Type, UploadedBy, UploadedAt) VALUES (?, ?, ?, NOW())");
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$stmt->bind_param("ssi", $filePath, $fileType, $_SESSION["ID"]);
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$stmt->execute();
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$stat = $stmt->affected_rows > 0;
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$stmt->close();
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return $stat;
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}
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function doImageUpload($inFile, $outFile): bool
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{
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// Create Imagick object
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2024-03-10 22:55:29 +01:00
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try {
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$imagick = new Imagick($inFile);
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$imagick->setImageFormat('webp');
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$imagick->stripImage();
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$imagick->writeImage($outFile);
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2024-04-25 10:19:24 +02:00
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$imagick->destroy();
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2024-03-10 22:55:29 +01:00
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} catch (ImagickException $e) {
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}
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2024-03-01 22:14:20 +01:00
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// Check if the reencoding was successful
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if (file_exists($outFile)) {
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return saveUploadedFileInDatabase($outFile, 'image/webp');
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} else {
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return false;
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}
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}
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2024-04-11 10:36:40 +02:00
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function listFiles($onlyMine = true): array
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2024-03-01 22:14:20 +01:00
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{
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$output = ["Status" => "Fail"];
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require_once "lib/account.php";
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2024-04-11 10:36:40 +02:00
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if (($onlyMine && isLoggedIn()) || (!$onlyMine && isModerator())) {
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2024-03-01 22:14:20 +01:00
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global $mysqli;
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$query = "SELECT ID, Path, Type, UploadedAt, UploadedBy FROM Files";
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2024-04-11 10:36:40 +02:00
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if ($onlyMine) {
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2024-03-01 22:14:20 +01:00
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$query .= " WHERE UploadedBy = ?";
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}
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$stmt = $mysqli->prepare($query);
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2024-04-11 10:36:40 +02:00
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if ($onlyMine) {
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2024-03-01 22:14:20 +01:00
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$stmt->bind_param("i", $_SESSION["ID"]);
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}
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$id = 0;
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$path = "";
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$type = "";
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$uploadedAt = "";
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$uploadedBy = 0;
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$stmt->bind_result($id, $path, $type, $uploadedAt, $uploadedBy);
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$stmt->execute();
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// Fetch the results into the bound variables
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while ($stmt->fetch()) {
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$files[] = [
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'ID' => $id,
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'Path' => $path,
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'Type' => $type,
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'UploadedAt' => $uploadedAt,
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'UploadedBy' => $uploadedBy,
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];
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}
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// Check if any results were fetched
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if (!empty($files)) {
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$output["Status"] = "Success";
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$output["Files"] = $files;
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}
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$stmt->close();
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}
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return $output;
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}
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function parseIncomingFiles(): array
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{
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$incomingFiles = getIncomingFiles();
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$success = true;
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2024-04-25 10:44:20 +02:00
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print_r($incomingFiles);
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2024-03-01 22:14:20 +01:00
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foreach ($incomingFiles as $incomingFile) {
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if ($incomingFile["error"] == 0 && is_file($incomingFile["tmp_name"])) {
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$type = explode("/", $incomingFile["type"]);
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2024-04-25 10:49:45 +02:00
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if ($type[0] == "image") {
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2024-04-25 10:43:11 +02:00
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echo "Adding " . $incomingFile["name"];
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2024-03-10 22:55:29 +01:00
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$imgFname = pathinfo($incomingFile["name"], PATHINFO_FILENAME);
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$uploadPath = getUploadPath("image", $imgFname);
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2024-04-25 10:43:11 +02:00
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echo "uppa " . $uploadPath;
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2024-03-10 22:55:29 +01:00
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if (!empty($uploadPath)) {
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if (!doImageUpload($incomingFile["tmp_name"], $uploadPath)) {
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2024-03-01 22:14:20 +01:00
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$success = false;
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}
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2024-03-10 22:55:29 +01:00
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} else {
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$success = false;
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}
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2024-03-01 22:14:20 +01:00
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}
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}
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}
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$output = ["Status" => "Fail"];
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2024-04-11 10:36:40 +02:00
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if ($success) {
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2024-03-01 22:14:20 +01:00
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$output["Status"] = "Success";
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}
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return $output;
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}
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function getUploadPath($type = "unknown", $filename = "hehe"): string
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{
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$type = makePathSafe($type);
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$id = makePathSafe($_SESSION["ID"]);
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$date = makePathSafe(date("Y/m/d"));
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$filename = makePathSafe($filename);
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$extension = match ($type) {
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'image' => 'webp',
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default => 'dummy',
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};
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2024-04-11 10:36:40 +02:00
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if ($extension != "dummy") {
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2024-04-25 10:30:22 +02:00
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$basepath = "uploads/$type/$id/$date";
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mkdir($basepath, 755, true);
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return $basepath . "/$filename.$extension";
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2024-04-11 10:36:40 +02:00
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} else {
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2024-03-01 22:14:20 +01:00
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return "";
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}
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2024-04-11 10:36:40 +02:00
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}
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2024-04-25 15:01:17 +02:00
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function fileExists(int $fileId, bool $onlyMine = true): bool|string
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2024-04-11 10:36:40 +02:00
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{
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if(!$fileId) {
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return false;
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}
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global $mysqli;
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if (!$onlyMine && !isAdmin()) {
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$onlyMine = true;
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}
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2024-04-25 23:32:02 +02:00
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$query = $onlyMine ? 'SELECT ID, Path FROM Files WHERE ID = ? AND UploadedBy = ?' : 'SELECT ID, Path FROM Files WHERE ID = ?';
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2024-04-11 10:36:40 +02:00
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$stmtfileexists = $mysqli->prepare($query);
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if ($onlyMine) {
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$stmtfileexists->bind_param('ii', $fileId, $_SESSION['id']);
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} else {
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$stmtfileexists->bind_param('i', $fileId);
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}
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2024-04-25 15:01:17 +02:00
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$filePath = "";
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2024-04-25 23:35:43 +02:00
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$id = -1;
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2024-04-25 23:31:41 +02:00
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$stmtfileexists->bind_result($id, $filePath);
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2024-04-11 10:36:40 +02:00
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$stmtfileexists->execute();
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2024-04-25 23:35:43 +02:00
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if ($id != -1){
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2024-04-25 15:01:17 +02:00
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return $filePath;
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}
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else {
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return false;
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}
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2024-04-11 10:36:40 +02:00
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}
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2024-04-25 10:19:24 +02:00
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function addToGroup(int $groupId, int $fileId): array
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2024-04-11 10:36:40 +02:00
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{
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$output = ["Status" => "Fail"];
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if (!$groupId || !$fileId) {
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return $output;
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}
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global $mysqli;
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$stmtcheck = $mysqli->prepare('SELECT ID FROM FileGroups WHERE CreatorID != ? AND ID = ?');
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$stmtcheck->bind_param('ii', $_SESSION['id'], $groupId);
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$stmtcheck->execute();
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if ($stmtcheck->affected_rows == 0) {
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if (fileExists($fileId, false)) {
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$stmtadd = $mysqli->prepare('INSERT INTO FileGroups (FileID, CreatorID, ID) VALUES (?, ?, ?)');
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$stmtadd->bind_param('iii', $fileId, $_SESSION['id'], $groupId);
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$stmtadd->execute();
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if ($stmtadd->affected_rows > 0) {
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$output["Status"] = "Success";
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}
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}
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}
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return $output;
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2024-04-25 09:04:10 +02:00
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}
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function getImageURL(int $imageFileID) :string
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{
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global $mysqli;
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$path = "";
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$stmtget = $mysqli->prepare('SELECT Path FROM Files WHERE ID = ?');
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$stmtget->bind_param('i', $imageFileID);
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$stmtget->execute();
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$stmtget->bind_result($path);
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$stmtget->fetch();
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return $path;
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2024-04-25 15:01:17 +02:00
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}
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function deleteFile(int $fileID) :string
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{
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$out = ["Status" => "Fail"];
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$file_location = fileExists($fileID, false);
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if ($file_location){
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if(unlink($file_location)) {
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$out['Status'] = 'Success';
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}
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}
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return $out;
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2024-03-01 22:14:20 +01:00
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}
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