WordPress/wp-admin/plugins.php

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<?php
if (isset($_GET['action'])) {
$standalone = 1;
require_once('admin-header.php');
check_admin_referer();
if ('activate' == $_GET['action']) {
$current = "\n" . get_settings('active_plugins') . "\n";
$current = preg_replace("|(\n)+\s*|", "\n", $current);
$current = trim($current) . "\n " . trim($_GET['plugin']);
$current = trim($current);
$current = preg_replace("|\n\s*|", "\n", $current); // I don't know where this is coming from
update_option('active_plugins', $current);
header('Location: plugins.php?activate=true');
}
if ('deactivate' == $_GET['action']) {
$current = "\n" . get_settings('active_plugins') . "\n";
$current = str_replace("\n" . $_GET['plugin'], '', $current);
$current = preg_replace("|(\n)+\s*|", "\n", $current);
update_option('active_plugins', trim($current));
header('Location: plugins.php?deactivate=true');
}
}
require_once('../wp-includes/wp-l10n.php');
$title = __('Manage Plugins');
require_once('admin-header.php');
if ($user_level < 9) // Must be at least level 9
die (__("Sorry, you must be at least a level 8 user to modify plugins."));
// Clean up options
// if any files are in the option that don't exist, axe 'em
$check_plugins = explode("\n", (get_settings('active_plugins')));
foreach ($check_plugins as $check_plugin) {
if (!file_exists(ABSPATH . 'wp-content/plugins/' . $check_plugin)) {
$current = get_settings('active_plugins') . "\n";
$current = str_replace($check_plugin . "\n", '', $current);
$current = preg_replace("|\n+|", "\n", $current);
update_option('active_plugins', trim($current));
}
}
?>
<?php if (isset($_GET['activate'])) : ?>
<div class="updated"><p><?php _e('Plugin <strong>activated</strong>.') ?></p>
</div>
<?php endif; ?>
<?php if (isset($_GET['deactivate'])) : ?>
<div class="updated"><p><?php _e('Plugin <strong>deactivated</strong>.') ?></p>
</div>
<?php endif; ?>
<div class="wrap">
<h2><?php _e('Plugin Management'); ?></h2>
<p><?php _e('Plugins are files you usually download separately from WordPress that add functionality. To install a plugin you generally just need to put the plugin file into your <code>wp-content/plugins</code> directory. Once a plugin is installed, you may activate it or deactivate it here.'); ?></p>
<?php
// Files in wp-content/plugins directory
$plugins_dir = @ dir(ABSPATH . 'wp-content/plugins');
if ($plugins_dir) {
while(($file = $plugins_dir->read()) !== false) {
if ( !preg_match('|^\.+$|', $file) && preg_match('|\.php$|', $file) )
$plugin_files[] = $file;
}
}
if ('' != trim(get_settings('active_plugins'))) {
$current_plugins = explode("\n", (get_settings('active_plugins')));
}
if (!$plugins_dir || !$plugin_files) {
_e("<p>Couldn't open plugins directory or there are no plugins available.</p>"); // TODO: make more helpful
} else {
?>
<table width="100%" cellpadding="3" cellspacing="3">
<tr>
<th><?php _e('Plugin'); ?></th>
<th><?php _e('Version'); ?></th>
<th><?php _e('Author'); ?></th>
<th><?php _e('Description'); ?></th>
<th><?php _e('Action'); ?></th>
</tr>
<?php
sort($plugin_files); // Alphabetize by filename. Better way?
$style = '';
foreach($plugin_files as $plugin_file) {
$plugin_data = implode('', file(ABSPATH . '/wp-content/plugins/' . $plugin_file));
preg_match("|Plugin Name:(.*)|i", $plugin_data, $plugin_name);
preg_match("|Plugin URI:(.*)|i", $plugin_data, $plugin_uri);
preg_match("|Description:(.*)|i", $plugin_data, $description);
preg_match("|Author:(.*)|i", $plugin_data, $author_name);
preg_match("|Author URI:(.*)|i", $plugin_data, $author_uri);
if ( preg_match("|Version:(.*)|i", $plugin_data, $version) )
$version = $version[1];
else
$version ='';
$description = wptexturize($description[1]);
if ('' == $plugin_uri) {
$plugin = $plugin_name[1];
} else {
$plugin = __("<a href='{$plugin_uri[1]}' title='Visit plugin homepage'>{$plugin_name[1]}</a>");
}
if ('' == $author_uri) {
$author = $author_name[1];
} else {
$author = __("<a href='{$author_uri[1]}' title='Visit author homepage'>{$author_name[1]}</a>");
}
$style = ('class="alternate"' == $style) ? '' : 'class="alternate"';
if (!empty($current_plugins) && in_array($plugin_file, $current_plugins)) {
$action = __("<a href='plugins.php?action=deactivate&amp;plugin=$plugin_file' title='Deactivate this plugin' class='delete'>Deactivate</a>");
$plugin = __("<strong>$plugin</strong>");
} else {
$action = __("<a href='plugins.php?action=activate&amp;plugin=$plugin_file' title='Activate this plugin' class='edit'>Activate</a>");
}
echo "
<tr $style>
<td>$plugin</td>
<td>$version</td>
<td>$author</td>
<td>$description</td>
<td>$action</td>
</tr>";
}
?>
</table>
<?php
}
?>
</div>
<?php
include('admin-footer.php');
?>