Mirrors new uploads silently to a backup domain - Simple! WordPress

Jonah Schulte answers:

I've got it working beautifully now on my test environment... Here's the revised/fixed code for the plugin:


<?php
/*
Plugin Name: Automatic Upload Mirror
Plugin URI:
Description:
Author:
Version: 1.0
Author URI:
*/


add_filter('wp_handle_upload', 'uploadmirror_main');
add_filter('wp_create_thumbnail', 'uploadmirror_main');
add_filter('image_make_intermediate_size', 'uploadmirror_main');

function uploadmirror_main($file) {

$uploads = wp_upload_dir();
$uploads['file'] = (is_string($file) ? $file : $file['url']);
$uploads['dir'] = (is_string($file) ? str_replace($uploads['basedir'], '', $uploads['file']) : str_replace($uploads['baseurl'], '', $uploads['file']));

// Fix url for thumbnails
$uploads['file'] = str_replace($uploads['path'], $uploads['url'], $uploads['file']);

foreach (array('uploadmirror_domain', 'uploadmirror_domain1', 'uploadmirror_domain2') as $option_name)
{
if (get_option($option_name) !== false) {

$ch = curl_init();
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, 'file=' . $uploads['file'] . '&dir=' . $uploads['dir']);
curl_setopt($ch, CURLOPT_URL, get_option($option_name));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$postResult = curl_exec($ch);

curl_close($ch);
}
}

return $file;

}


//Dashboard Menus

add_action('admin_menu', array('uploadmirror_admin_content', 'menu'));


class uploadmirror_admin_content {

function menu() {
add_options_page('Automatic Upload Mirror', 'Automatic Upload Mirror', 8, __FILE__, array('uploadmirror_admin_content', 'modify'));
}

function modify() {
if (!empty($_POST['do'])) {
foreach (array('uploadmirror_domain', 'uploadmirror_domain1', 'uploadmirror_domain2') as $option_name)
{
$newvalue = $_POST[$option_name];
if (get_option($option_name) != $newvalue) {
update_option($option_name, $newvalue);
} else {
$deprecated=' ';
$autoload='no';
add_option($option_name, $newvalue, $deprecated, $autoload);
}
}

if (!empty($error))
{
echo '<div class="error fade">' . nl2br($error) . '</div>';
}
else
{
echo '<div class="updated fade">Settings saved.</div>';
}
}

?>

<div class="wrap">

<h2>Automatic Upload Mirrors</h2>

<form action="" method="post" enctype="multipart/form-data">

<table class="widefat">

<tbody>

<tr>

<td>Path to filedump script #1</td>

<td><input type="text" value="<?php echo get_option('uploadmirror_domain', ''); ?>" name="uploadmirror_domain" style="width: 100%;" /></td>

</tr>

<tr>

<td>Path to filedump script #2</td>

<td><input type="text" value="<?php echo get_option('uploadmirror_domain1', ''); ?>" name="uploadmirror_domain1" style="width: 100%;" /></td>

</tr>

<tr>

<td>Path to filedump script #3</td>

<td><input type="text" value="<?php echo get_option('uploadmirror_domain2', ''); ?>" name="uploadmirror_domain2" style="width: 100%;" /></td>

</tr>

</tbody>

</table>

<input class="button-primary" name="do" value="Submit" class="button" type="submit" />

&nbsp;&nbsp;

<input name="cancel" value="Cancel" class="button" onclick="javascript:history.go(-1)" type="button" />

</form>

</div>

<?php

}
}
?>


And here's the code for the accompanying 'helper' file that downloads the uploads on the remote server:


<?php
function vWritePageToFile($readurl)
{
if (!$readurl)
{
print "No file specified.";
return false;
}

$dir = $_POST['dir'];
$parts = explode('/', $dir);
$file = array_pop($parts);
$dir = dirname(__FILE__);

foreach ($parts as $part)
{
if (!empty($part))
{
if (!is_dir($dir .= "/$part"))
{
mkdir($dir);
}
}
}

$ch = curl_init($readurl);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_BINARYTRANSFER, 1);
$rawdata = curl_exec($ch);
curl_close($ch);

if (file_exists("$dir/$file"))
{
unlink("$dir/$file");
}

$fp = fopen("$dir/$file", 'x');
fwrite($fp, $rawdata);
fclose($fp);
}

if (isset($_POST['file']))
{
vWritePageToFile($_POST['file']);
}
else
{
die("No file specified.");
}
?>


Put the helper file at the root of where the backed up files should be stored. For example, if you're trying to mirror the files from one Wordpress installation to another, the place to put the helper file is /wp-content/uploads/ because that is the base directory for the uploaded content.

This may be obvious, but you'll have to activate the "Automatic Upload Mirror" plugin in the wordpress admin and also configure the location of your remote web server's helper file in the "Automatic Upload Mirror" area under "Settings" in the admin. If you put the helper file (let's say it's called backup-mirror.php) in /wp-content/uploads/ on your wordpress install and your domain is www.mydomain.com, enter this in the "Path to filedump script #1" field in the plugin settings:

http://www.mydomain.com/wp-content/uploads/backup-mirror.php

If you prefer to put the helper file in another location you can modify this line in the helper script above:

$dir = dirname(__FILE__);

If you want to put the script in the root folder of the Wordpress install for example, change the above line to:

$dir = dirname(__FILE__).'/wp-content/uploads';

And then update the plugin settings to:

http://www.mydomain.com/backup-mirror.php


Let me know if you have any problems with this code or any questions!

Thanks,
Jonah

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