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[mod] Use content hash instead of timestamp as image file name after upload

edited October 2018 in Contributions

    $file = $_FILES['upload']['tmp_name'];
    $file_name = $_FILES['upload']['name'];
    $extension_explode = explode('.', $file_name);
    $extension = $extension_explode[count($extension_explode)-1];
    $extension2 = $extension_explode[count($extension_explode)-2];
    if($extension2=='php' || $file_name=='.htaccess') exit;


    //Check filetype
    $allowed = array("jpeg", "jpg", "gif", "png");
    if(in_array(strtolower($extension), $allowed)) //if file is an image, allow upload
        //Upload file
        $dest = '/uploads/' . sha1_file($file) . ".$extension";
        move_uploaded_file($file, "../..$dest");

        //return result
        //echo 'Image uploaded successfully!';

        // Required: anonymous function reference number as explained above.
        $funcNum = (int)$_GET['CKEditorFuncNum'] ;
        // Optional: instance name (might be used to load a specific configuration file or anything else).
        $CKEditor = $_GET['CKEditor'] ;
        // Optional: might be used to provide localized messages.
        $langCode = $_GET['langCode'] ;

        // Check the $_FILES array and save the file. Assign the correct path to a variable ($url).
        $url = APP_PATH . $dest;
        // Usually you will only assign something here if the file could not be uploaded.
        $message = '';

        echo "<script type='text/javascript'>$funcNum, '$url', '$message');</script>";
    else exit;
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