summaryrefslogtreecommitdiffstats
path: root/wp-admin/includes/update.php
blob: d17298f897053d423319382b84db2560d5116e2c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
<?php
/*

// The admin side of our 1.1 update system

function core_update_footer( $msg = '' ) {
	if ( !current_user_can('manage_options') )
		return sprintf( '| '.__( 'Version %s' ), $GLOBALS['wp_version'] );

	$cur = get_option( 'update_core' );

	switch ( $cur->response ) {
	case 'development' :
		return sprintf( '| '.__( 'You are using a development version (%s). Cool! Please <a href="%s">stay updated</a>.' ), $GLOBALS['wp_version'], $cur->url, $cur->current );
	break;

	case 'upgrade' :
		if ( current_user_can('manage_options') ) {
			return sprintf( '| <strong>'.__( '<a href="%2$s">Get Version %3$s</a>' ).'</strong>', $GLOBALS['wp_version'], $cur->url, $cur->current );
			break;
		}

	case 'latest' :
	default :
		return sprintf( '| '.__( 'Version %s' ), $GLOBALS['wp_version'], $cur->url, $cur->current );
	break;
	}
}
add_filter( 'update_footer', 'core_update_footer' );

function update_nag() {
	$cur = get_option( 'update_core' );

	if ( ! isset( $cur->response ) || $cur->response != 'upgrade' )
		return false;

	if ( current_user_can('manage_options') )
		$msg = sprintf( __('WordPress %2$s is available! <a href="%1$s">Please update now</a>.'), $cur->url, $cur->current );
	else
		$msg = sprintf( __('WordPress %2$s is available! Please notify the site administrator.'), $cur->url, $cur->current );

	echo "<div id='update-nag'>$msg</div>";
}
add_action( 'admin_notices', 'update_nag', 3 );

// Called directly from dashboard
function update_right_now_message() {
	$cur = get_option( 'update_core' );

	$msg = sprintf( __('This is WordPress version %s.'), $GLOBALS['wp_version'] );
	if ( isset( $cur->response ) && $cur->response == 'upgrade' && current_user_can('manage_options') )
		$msg .= " <a href='$cur->url' class='rbutton'>" . sprintf( __('Update to %s'), $cur->current ? $cur->current : __( 'Latest' ) ) . '</a>';

	echo "<span id='wp-version-message'>$msg</span>";
}

function wp_update_plugins() {
	global $wp_version;

	if ( !function_exists('fsockopen') )
		return false;

	$plugins = get_plugins();
	$active  = get_option( 'active_plugins' );
	$current = get_option( 'update_plugins' );

	$new_option = '';
	$new_option->last_checked = time();

	$plugin_changed = false;
	foreach ( $plugins as $file => $p ) {
		$new_option->checked[ $file ] = $p['Version'];

		if ( !isset( $current->checked[ $file ] ) ) {
			$plugin_changed = true;
			continue;
		}

		if ( strval($current->checked[ $file ]) !== strval($p['Version']) )
			$plugin_changed = true;
	}

	if (
		isset( $current->last_checked ) &&
		43200 > ( time() - $current->last_checked ) &&
		!$plugin_changed
	)
		return false;

	$to_send->plugins = $plugins;
	$to_send->active = $active;
	$send = serialize( $to_send );

	$request = 'plugins=' . urlencode( $send );
	$http_request  = "POST /plugins/update-check/1.0/ HTTP/1.0\r\n";
	$http_request .= "Host: api.wordpress.org\r\n";
	$http_request .= "Content-Type: application/x-www-form-urlencoded; charset=" . get_option('blog_charset') . "\r\n";
	$http_request .= "Content-Length: " . strlen($request) . "\r\n";
	$http_request .= 'User-Agent: WordPress/' . $wp_version . '; ' . get_bloginfo('url') . "\r\n";
	$http_request .= "\r\n";
	$http_request .= $request;

	$response = '';
	if( false != ( $fs = @fsockopen( 'api.wordpress.org', 80, $errno, $errstr, 3) ) && is_resource($fs) ) {
		fwrite($fs, $http_request);

		while ( !feof($fs) )
			$response .= fgets($fs, 1160); // One TCP-IP packet
		fclose($fs);
		$response = explode("\r\n\r\n", $response, 2);
	}

	$response = unserialize( $response[1] );

	if ( $response )
		$new_option->response = $response;

	update_option( 'update_plugins', $new_option );
}
add_action( 'load-plugins.php', 'wp_update_plugins' );

function wp_plugin_update_row( $file, $plugin_data ) {
	$current = get_option( 'update_plugins' );
	if ( !isset( $current->response[ $file ] ) )
		return false;

	$r = $current->response[ $file ];

	echo '<tr><td colspan="5" class="plugin-update">';
	if ( ! current_user_can('update_plugins') )
		printf( __('There is a new version of %1$s available. <a href="%2$s">Download version %3$s here</a>.'), $plugin_data['Name'], $r->url, $r->new_version);
	else if ( empty($r->package) )
		printf( __('There is a new version of %1$s available. <a href="%2$s">Download version %3$s here</a> <em>automatic upgrade unavailable for this plugin</em>.'), $plugin_data['Name'], $r->url, $r->new_version);
	else
		printf( __('There is a new version of %1$s available. <a href="%2$s">Download version %3$s here</a> or <a href="%4$s">upgrade automatically</a>.'), $plugin_data['Name'], $r->url, $r->new_version, wp_nonce_url('update.php?action=upgrade-plugin&amp;plugin=' . $file, 'upgrade-plugin_' . $file) );
	
	echo '</td></tr>';
}
add_action( 'after_plugin_row', 'wp_plugin_update_row', 10, 2 );

function wp_update_plugin($plugin, $feedback = '') {
	global $wp_filesystem;

	if ( !empty($feedback) )
		add_filter('update_feedback', $feedback);

	// Is an update available?
	$current = get_option( 'update_plugins' );
	if ( !isset( $current->response[ $plugin ] ) )
		return new WP_Error('up_to_date', __('The plugin is at the latest version.'));

	// Is a filesystem accessor setup?
	if ( ! $wp_filesystem || ! is_object($wp_filesystem) )
		WP_Filesystem();

	if ( ! is_object($wp_filesystem) )
		return new WP_Error('fs_unavailable', __('Could not access filesystem.'));

	if ( $wp_filesystem->errors->get_error_code() )
		return new WP_Error('fs_error', __('Filesystem error'), $wp_filesystem->errors);

	//Get the base plugin folder
	$plugins_dir = $wp_filesystem->wp_plugins_dir();
	if ( empty($plugins_dir) )
		return new WP_Error('fs_no_plugins_dir', __('Unable to locate WordPress Plugin directory.'));

	//And the same for the Content directory.
	$content_dir = $wp_filesystem->wp_content_dir();
	if( empty($content_dir) )
		return new WP_Error('fs_no_content_dir', __('Unable to locate WordPress Content directory (wp-content).'));
	
	$plugins_dir = trailingslashit( $plugins_dir );
	$content_dir = trailingslashit( $content_dir );

	// Get the URL to the zip file
	$r = $current->response[ $plugin ];

	if ( empty($r->package) )
		return new WP_Error('no_package', __('Upgrade package not available.'));

	// Download the package
	$package = $r->package;
	apply_filters('update_feedback', sprintf(__('Downloading update from %s'), $package));
	$download_file = download_url($package);

	if ( is_wp_error($download_file) )
		return new WP_Error('download_failed', __('Download failed.'), $download_file->get_error_message());

	$working_dir = $content_dir . 'upgrade/' . basename($plugin, '.php');

	// Clean up working directory
	if ( $wp_filesystem->is_dir($working_dir) )
		$wp_filesystem->delete($working_dir, true);

	apply_filters('update_feedback', __('Unpacking the update'));
	// Unzip package to working directory
	$result = unzip_file($download_file, $working_dir);
	
	// Once extracted, delete the package
	unlink($download_file);
	
	if ( is_wp_error($result) ) {
		$wp_filesystem->delete($working_dir, true);
		return $result;
	}

	if ( is_plugin_active($plugin) ) {
		//Deactivate the plugin silently, Prevent deactivation hooks from running.
		apply_filters('update_feedback', __('Deactivating the plugin'));
		deactivate_plugins($plugin, true);
	}

	// Remove the existing plugin.
	apply_filters('update_feedback', __('Removing the old version of the plugin'));
	$this_plugin_dir = trailingslashit( dirname($plugins_dir . $plugin) );
	
	// If plugin is in its own directory, recursively delete the directory.
	if ( strpos($plugin, '/') && $this_plugin_dir != $plugins_dir ) //base check on if plugin includes directory seperator AND that its not the root plugin folder
		$deleted = $wp_filesystem->delete($this_plugin_dir, true);
	else
		$deleted = $wp_filesystem->delete($plugins_dir . $plugin);

	if ( ! $deleted ) {
		$wp_filesystem->delete($working_dir, true);
		return new WP_Error('delete_failed', __('Could not remove the old plugin'));
	}

	apply_filters('update_feedback', __('Installing the latest version'));
	// Copy new version of plugin into place.
	$result = copy_dir($working_dir, $plugins_dir);
	if ( is_wp_error($result) ) {
		//$wp_filesystem->delete($working_dir, true); //TODO: Uncomment? This DOES mean that the new files are available in the upgrade folder if it fails.
		return $result;
	}

	//Get a list of the directories in the working directory before we delete it, We need to know the new folder for the plugin
	$filelist = array_keys( $wp_filesystem->dirlist($working_dir) );

	// Remove working directory
	$wp_filesystem->delete($working_dir, true);

	// Force refresh of plugin update information
	delete_option('update_plugins');
	
	if( empty($filelist) )
		return false; //We couldnt find any files in the working dir, therefor no plugin installed? Failsafe backup.
	
	$folder = $filelist[0];
	$plugin = get_plugins('/' . $folder); //Ensure to pass with leading slash
	$pluginfiles = array_keys($plugin); //Assume the requested plugin is the first in the list

	return  $folder . '/' . $pluginfiles[0];
}

*/
?>