jQuery File Upload by bluimp, how to replace instead of renaming

Question

First of all the jQuery plugin can be found here:

https://github.com/blueimp/jQuery-File-Upload

I'm using the PHP-version of the script and I'm trying to replace images that has the same name instead of renaming them.

I think I've found the functions that do the renaming, but the edits I tried do not work.

  protected function upcount_name_callback($matches) {
        $index = isset($matches[1]) ? intval($matches[1]) + 1 : 1;
        $ext = isset($matches[2]) ? $matches[2] : '';
        return ' ('.$index.')'.$ext;
    }

    protected function upcount_name($name) {
        return preg_replace_callback(
            '/(?:(?: \(([\d]+)\))?(\.[^.]+))?$/',
            array($this, 'upcount_name_callback'),
            $name,
            1
        );
    }

Any suggestions? I've searched for this all over the place but to no avail.

Link to the php class that does the upload: https://github.com/blueimp/jQuery-File-Upload/blob/master/server/php/upload.class.php

Any suggestions?

Edit:

I've tried to just return null on these functions, but that just hangs the script, probably because it doesn't know what to do if the filename is the same.

Nope nothing yet. I'm thinking of suggesting this feature on github, but then again, bluimp has nothing to do with the server side script as far as I know. But you could upvote the question :) — Albin N, Jun 07 '13 at 06:22
Yes agree. In the meanwhile I have found the solution my self. I will post an answer what I did with their provided PHP server side script so that file is overwritten... — Primoz Rome, Jun 11 '13 at 07:55
Hi I have provided a solution to this question. Please accept my answer if it suits you. It works for me. — Primoz Rome, Jun 26 '13 at 14:43

score 9 · Accepted Answer · edited Nov 25 '14 at 00:33

You can alter their PHP server side script to have files overwritten instead of creating a new unique filename. Just alter upload handler class function get_file_name:

Original function:

 protected function get_file_name($file_path, $name, $size, $type, $error,
        $index, $content_range) {
    $name = $this->trim_file_name($file_path, $name, $size, $type, $error,
        $index, $content_range);
    return $this->get_unique_filename(
        $file_path,
        $this->fix_file_extension($file_path, $name, $size, $type, $error,
            $index, $content_range),
        $size,
        $type,
        $error,
        $index,
        $content_range
    );
}

alter it to this:

protected function get_file_name($file_path, $name, $size, $type, $error,
            $index, $content_range) {
        $name = $this->trim_file_name($file_path, $name, $size, $type, $error,
            $index, $content_range);
        return $name;
    }

This way existing file will get overwritten if the uploaded file-name is same as the existing file on your server.

score 0 · Answer 2 · edited Nov 08 '14 at 05:07

Use this custom function in file index.php require UploadHandler.php

protected function trim_file_name($file_path, $name, $size, $type, $error,
            $index, $content_range) {

    // Remove path information and dots around the filename, to prevent uploading
    // into different directories or replacing hidden system files.
    // Also remove control characters and spaces (\x00..\x20) around the filename:
    $name = trim(basename(stripslashes(unique_custom_file_name)), ".\x00..\x20");
    // Use a timestamp for empty filenames:
    if (!$name) {
        $name = str_replace('.', '-', microtime(true));
    }
    return $name;
}

score 0 · Answer 3 · answered Nov 16 '17 at 15:35

you can also use overwrite as an option like this:

$options = array(
  'overwrite' => $overwrite
);
$upload_handler = new UploadHandler($options);

in UploadHandler.php : add the default parameter

    function __construct($options = null,...){
            ...
            'overwrite' => false,
            ...
    }

then replace get_file_name() function by

    protected function get_file_name($file_path, $name, $size, $type, $error,
            $index, $content_range) {
        $name = $this->trim_file_name($file_path, $name, $size, $type, $error,
            $index, $content_range);
        if($this->options['overwrite'])
            return $name;
        else
            return $this->get_unique_filename(
                $file_path,
                $this->fix_file_extension($file_path, $name, $size, $type, $error,
                    $index, $content_range),
                $size,
                $type,
                $error,
                $index,
                $content_range
            );
    }

regards

jQuery File Upload by bluimp, how to replace instead of renaming

3 Answers3

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