Changeset 59488 for trunk/src/wp-admin/includes/plugin.php

Timestamp:

12/05/2024 12:11:27 PM (16 months ago)

Author:

swissspidy

Message:

Plugins: Load wp-admin/includes/plugin.php earlier.

Partially reverts [59479] and [59461], which previously tried to move some functions from wp-admin/includes/plugin.php to wp-includes/functions.php so they are available early, so that get_plugin_data() can be used.

However, other functions from that file are often used by plugins without necessarily checking whether they are available, easily causing fatal errors. Requiring this file directly is a safer approach to avoid such errors.

Props peterwilsoncc, dd32, swissspidy, johnbillion.
Fixes #62244.

File:

• trunk/src/wp-admin/includes/plugin.php (modified) (2 diffs)

trunk/src/wp-admin/includes/plugin.php

@@ -6 +6 @@
  * @subpackage Administration
  */
+
+/**
+ * Parses the plugin contents to retrieve plugin's metadata.
+ *
+ * All plugin headers must be on their own line. Plugin description must not have
+ * any newlines, otherwise only parts of the description will be displayed.
+ * The below is formatted for printing.
+ *
+ *     /*
+ *     Plugin Name: Name of the plugin.
+ *     Plugin URI: The home page of the plugin.
+ *     Description: Plugin description.
+ *     Author: Plugin author's name.
+ *     Author URI: Link to the author's website.
+ *     Version: Plugin version.
+ *     Text Domain: Optional. Unique identifier, should be same as the one used in
+ *          load_plugin_textdomain().
+ *     Domain Path: Optional. Only useful if the translations are located in a
+ *          folder above the plugin's base path. For example, if .mo files are
+ *          located in the locale folder then Domain Path will be "/locale/" and
+ *          must have the first slash. Defaults to the base folder the plugin is
+ *          located in.
+ *     Network: Optional. Specify "Network: true" to require that a plugin is activated
+ *          across all sites in an installation. This will prevent a plugin from being
+ *          activated on a single site when Multisite is enabled.
+ *     Requires at least: Optional. Specify the minimum required WordPress version.
+ *     Requires PHP: Optional. Specify the minimum required PHP version.
+ *     * / # Remove the space to close comment.
+ *
+ * The first 8 KB of the file will be pulled in and if the plugin data is not
+ * within that first 8 KB, then the plugin author should correct their plugin
+ * and move the plugin data headers to the top.
+ *
+ * The plugin file is assumed to have permissions to allow for scripts to read
+ * the file. This is not checked however and the file is only opened for
+ * reading.
+ *
+ * @since 1.5.0
+ * @since 5.3.0 Added support for `Requires at least` and `Requires PHP` headers.
+ * @since 5.8.0 Added support for `Update URI` header.
+ * @since 6.5.0 Added support for `Requires Plugins` header.
+ *
+ * @param string $plugin_file Absolute path to the main plugin file.
+ * @param bool   $markup      Optional. If the returned data should have HTML markup applied.
+ *                            Default true.
+ * @param bool   $translate   Optional. If the returned data should be translated. Default true.
+ * @return array {
+ *     Plugin data. Values will be empty if not supplied by the plugin.
+ *
+ *     @type string $Name            Name of the plugin. Should be unique.
+ *     @type string $PluginURI       Plugin URI.
+ *     @type string $Version         Plugin version.
+ *     @type string $Description     Plugin description.
+ *     @type string $Author          Plugin author's name.
+ *     @type string $AuthorURI       Plugin author's website address (if set).
+ *     @type string $TextDomain      Plugin textdomain.
+ *     @type string $DomainPath      Plugin's relative directory path to .mo files.
+ *     @type bool   $Network         Whether the plugin can only be activated network-wide.
+ *     @type string $RequiresWP      Minimum required version of WordPress.
+ *     @type string $RequiresPHP     Minimum required version of PHP.
+ *     @type string $UpdateURI       ID of the plugin for update purposes, should be a URI.
+ *     @type string $RequiresPlugins Comma separated list of dot org plugin slugs.
+ *     @type string $Title           Title of the plugin and link to the plugin's site (if set).
+ *     @type string $AuthorName      Plugin author's name.
+ * }
+ */
+function get_plugin_data( $plugin_file, $markup = true, $translate = true ) {
+
+    $default_headers = array(
+        'Name'            => 'Plugin Name',
+        'PluginURI'       => 'Plugin URI',
+        'Version'         => 'Version',
+        'Description'     => 'Description',
+        'Author'          => 'Author',
+        'AuthorURI'       => 'Author URI',
+        'TextDomain'      => 'Text Domain',
+        'DomainPath'      => 'Domain Path',
+        'Network'         => 'Network',
+        'RequiresWP'      => 'Requires at least',
+        'RequiresPHP'     => 'Requires PHP',
+        'UpdateURI'       => 'Update URI',
+        'RequiresPlugins' => 'Requires Plugins',
+        // Site Wide Only is deprecated in favor of Network.
+        '_sitewide'       => 'Site Wide Only',
+    );
+
+    $plugin_data = get_file_data( $plugin_file, $default_headers, 'plugin' );
+
+    // Site Wide Only is the old header for Network.
+    if ( ! $plugin_data['Network'] && $plugin_data['_sitewide'] ) {
+        /* translators: 1: Site Wide Only: true, 2: Network: true */
+        _deprecated_argument( __FUNCTION__, '3.0.0', sprintf( __( 'The %1$s plugin header is deprecated. Use %2$s instead.' ), '<code>Site Wide Only: true</code>', '<code>Network: true</code>' ) );
+        $plugin_data['Network'] = $plugin_data['_sitewide'];
+    }
+    $plugin_data['Network'] = ( 'true' === strtolower( $plugin_data['Network'] ) );
+    unset( $plugin_data['_sitewide'] );
+
+    // If no text domain is defined fall back to the plugin slug.
+    if ( ! $plugin_data['TextDomain'] ) {
+        $plugin_slug = dirname( plugin_basename( $plugin_file ) );
+        if ( '.' !== $plugin_slug && ! str_contains( $plugin_slug, '/' ) ) {
+            $plugin_data['TextDomain'] = $plugin_slug;
+        }
+    }
+
+    if ( $markup || $translate ) {
+        $plugin_data = _get_plugin_data_markup_translate( $plugin_file, $plugin_data, $markup, $translate );
+    } else {
+        $plugin_data['Title']      = $plugin_data['Name'];
+        $plugin_data['AuthorName'] = $plugin_data['Author'];
+    }
+
+    return $plugin_data;
+}
+
+/**
+ * Sanitizes plugin data, optionally adds markup, optionally translates.
+ *
+ * @since 2.7.0
+ *
+ * @see get_plugin_data()
+ *
+ * @access private
+ *
+ * @param string $plugin_file Path to the main plugin file.
+ * @param array  $plugin_data An array of plugin data. See get_plugin_data().
+ * @param bool   $markup      Optional. If the returned data should have HTML markup applied.
+ *                            Default true.
+ * @param bool   $translate   Optional. If the returned data should be translated. Default true.
+ * @return array Plugin data. Values will be empty if not supplied by the plugin.
+ *               See get_plugin_data() for the list of possible values.
+ */
+function _get_plugin_data_markup_translate( $plugin_file, $plugin_data, $markup = true, $translate = true ) {
+
+    // Sanitize the plugin filename to a WP_PLUGIN_DIR relative path.
+    $plugin_file = plugin_basename( $plugin_file );
+
+    // Translate fields.
+    if ( $translate ) {
+        $textdomain = $plugin_data['TextDomain'];
+        if ( $textdomain ) {
+            if ( ! is_textdomain_loaded( $textdomain ) ) {
+                if ( $plugin_data['DomainPath'] ) {
+                    load_plugin_textdomain( $textdomain, false, dirname( $plugin_file ) . $plugin_data['DomainPath'] );
+                } else {
+                    load_plugin_textdomain( $textdomain, false, dirname( $plugin_file ) );
+                }
+            }
+        } elseif ( 'hello.php' === basename( $plugin_file ) ) {
+            $textdomain = 'default';
+        }
+        if ( $textdomain ) {
+            foreach ( array( 'Name', 'PluginURI', 'Description', 'Author', 'AuthorURI', 'Version' ) as $field ) {
+                if ( ! empty( $plugin_data[ $field ] ) ) {
+                    // phpcs:ignore WordPress.WP.I18n.LowLevelTranslationFunction,WordPress.WP.I18n.NonSingularStringLiteralText,WordPress.WP.I18n.NonSingularStringLiteralDomain
+                    $plugin_data[ $field ] = translate( $plugin_data[ $field ], $textdomain );
+                }
+            }
+        }
+    }
+
+    // Sanitize fields.
+    $allowed_tags_in_links = array(
+        'abbr'    => array( 'title' => true ),
+        'acronym' => array( 'title' => true ),
+        'code'    => true,
+        'em'      => true,
+        'strong'  => true,
+    );
+
+    $allowed_tags      = $allowed_tags_in_links;
+    $allowed_tags['a'] = array(
+        'href'  => true,
+        'title' => true,
+    );
+
+    /*
+     * Name is marked up inside <a> tags. Don't allow these.
+     * Author is too, but some plugins have used <a> here (omitting Author URI).
+     */
+    $plugin_data['Name']   = wp_kses( $plugin_data['Name'], $allowed_tags_in_links );
+    $plugin_data['Author'] = wp_kses( $plugin_data['Author'], $allowed_tags );
+
+    $plugin_data['Description'] = wp_kses( $plugin_data['Description'], $allowed_tags );
+    $plugin_data['Version']     = wp_kses( $plugin_data['Version'], $allowed_tags );
+
+    $plugin_data['PluginURI'] = esc_url( $plugin_data['PluginURI'] );
+    $plugin_data['AuthorURI'] = esc_url( $plugin_data['AuthorURI'] );
+
+    $plugin_data['Title']      = $plugin_data['Name'];
+    $plugin_data['AuthorName'] = $plugin_data['Author'];
+
+    // Apply markup.
+    if ( $markup ) {
+        if ( $plugin_data['PluginURI'] && $plugin_data['Name'] ) {
+            $plugin_data['Title'] = '<a href="' . $plugin_data['PluginURI'] . '">' . $plugin_data['Name'] . '</a>';
+        }
+
+        if ( $plugin_data['AuthorURI'] && $plugin_data['Author'] ) {
+            $plugin_data['Author'] = '<a href="' . $plugin_data['AuthorURI'] . '">' . $plugin_data['Author'] . '</a>';
+        }
+
+        $plugin_data['Description'] = wptexturize( $plugin_data['Description'] );
+
+        if ( $plugin_data['Author'] ) {
+            $plugin_data['Description'] .= sprintf(
+                /* translators: %s: Plugin author. */
+                ' <cite>' . __( 'By %s.' ) . '</cite>',
+                $plugin_data['Author']
+            );
+        }
+    }
+
+    return $plugin_data;
+}
 
 /**
@@ -303 +518 @@
 
     return $dropins;
+}
+
+/**
+ * Determines whether a plugin is active.
+ *
+ * Only plugins installed in the plugins/ folder can be active.
+ *
+ * Plugins in the mu-plugins/ folder can't be "activated," so this function will
+ * return false for those plugins.
+ *
+ * For more information on this and similar theme functions, check out
+ * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
+ * Conditional Tags} article in the Theme Developer Handbook.
+ *
+ * @since 2.5.0
+ *
+ * @param string $plugin Path to the plugin file relative to the plugins directory.
+ * @return bool True, if in the active plugins list. False, not in the list.
+ */
+function is_plugin_active( $plugin ) {
+    return in_array( $plugin, (array) get_option( 'active_plugins', array() ), true ) || is_plugin_active_for_network( $plugin );
+}
+
+/**
+ * Determines whether the plugin is inactive.
+ *
+ * Reverse of is_plugin_active(). Used as a callback.
+ *
+ * For more information on this and similar theme functions, check out
+ * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
+ * Conditional Tags} article in the Theme Developer Handbook.
+ *
+ * @since 3.1.0
+ *
+ * @see is_plugin_active()
+ *
+ * @param string $plugin Path to the plugin file relative to the plugins directory.
+ * @return bool True if inactive. False if active.
+ */
+function is_plugin_inactive( $plugin ) {
+    return ! is_plugin_active( $plugin );
+}
+
+/**
+ * Determines whether the plugin is active for the entire network.
+ *
+ * Only plugins installed in the plugins/ folder can be active.
+ *
+ * Plugins in the mu-plugins/ folder can't be "activated," so this function will
+ * return false for those plugins.
+ *
+ * For more information on this and similar theme functions, check out
+ * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
+ * Conditional Tags} article in the Theme Developer Handbook.
+ *
+ * @since 3.0.0
+ *
+ * @param string $plugin Path to the plugin file relative to the plugins directory.
+ * @return bool True if active for the network, otherwise false.
+ */
+function is_plugin_active_for_network( $plugin ) {
+    if ( ! is_multisite() ) {
+        return false;
+    }
+
+    $plugins = get_site_option( 'active_sitewide_plugins' );
+    if ( isset( $plugins[ $plugin ] ) ) {
+        return true;
+    }
+
+    return false;
+}
+
+/**
+ * Checks for "Network: true" in the plugin header to see if this should
+ * be activated only as a network wide plugin. The plugin would also work
+ * when Multisite is not enabled.
+ *
+ * Checks for "Site Wide Only: true" for backward compatibility.
+ *
+ * @since 3.0.0
+ *
+ * @param string $plugin Path to the plugin file relative to the plugins directory.
+ * @return bool True if plugin is network only, false otherwise.
+ */
+function is_network_only_plugin( $plugin ) {
+    $plugin_data = get_plugin_data( WP_PLUGIN_DIR . '/' . $plugin );
+    if ( $plugin_data ) {
+        return $plugin_data['Network'];
+    }
+    return false;
 }