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CryptX / 4.2.1
CryptX v4.2.1
4.2.1 4.2.0 4.1.1 trunk 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.9 2.0 2.1 2.2 2.3 2.3.1 2.3.2 2.3.3 2.4.0 2.4.1 2.4.2 2.4.3 2.4.4 All 93 releases
← All changes | cryptx.php +350 -308 1.24.2.1 View file →
@@ -1,359 +1,401 @@
1 1 <?php
2 -/*
3 -Plugin Name: CryptX
4 -Plugin URI: http://weber-nrw/wordpress/cryptx/
5 -Description: No more SPAM by spiders scanning you site for email adresses. With CryptX you can hide all your email adresses, with and without a mailto-link, by converting them using javascript or UNICODE. Although you can choose to add a mailto-link to all unlinked email adresses with only one klick at the settings. That's great, isn't it?
6 -Version: 1.2
7 -Author: Ralf Weber
8 -Author URI: http://weber-nrw.de/
9 -*/
2 +/**
3 + * Plugin Name: CryptX
4 + * Plugin URI: https://wordpress.org/plugins/cryptx/
5 + * Description: CryptX encrypts email addresses in your posts, pages, comments, and text widgets to protect them from spam bots while keeping them readable for your visitors.
6 + * Version: 4.2.1
7 + * Requires at least: 6.7
8 + * Tested up to: 7.1
9 + * Requires PHP: 8.1
10 + * Author: Ralf Weber
11 + * Author URI: https://weber-nrw.de/
12 + * License: GPL v2 or later
13 + * License URI: https://www.gnu.org/licenses/gpl-2.0.html
14 + * Text Domain: cryptx
15 + *
16 + * CryptX is free software: you can redistribute it and/or modify
17 + * it under the terms of the GNU General Public License as published by
18 + * the Free Software Foundation, either version 2 of the License, or
19 + * any later version.
20 + *
21 + * CryptX is distributed in the hope that it will be useful,
22 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 + * GNU General Public License for more details.
25 + *
26 + * You should have received a copy of the GNU General Public License
27 + * along with CryptX. If not, see https://www.gnu.org/licenses/gpl-2.0.html.
28 + *
29 + * @package CryptX
30 + * @since 1.0.0
31 + */
10 32
11 -/////////////////////////////////////////////////////////////////////////////
12 -
13 -/**
14 -* @internal prevent from direct calls
15 -*/
33 +// Prevent direct access
16 34 if (!defined('ABSPATH')) {
17 - return ;
18 - }
35 + exit;
36 +}
19 37
20 -/**
21 -* @internal prevent from second inclusion
22 -*/
23 -if (!class_exists('cryptX')) {
38 +// Plugin constants
39 +define('CRYPTX_VERSION', '4.2.1');
40 +define('CRYPTX_PLUGIN_FILE', __FILE__);
41 +define('CRYPTX_PLUGIN_BASENAME', plugin_basename(__FILE__));
42 +define('CRYPTX_BASENAME', plugin_basename(__FILE__)); // Add this missing constant
43 +define('CRYPTX_DIR_PATH', plugin_dir_path(__FILE__));
44 +define('CRYPTX_DIR_URL', plugin_dir_url(__FILE__));
45 +define('CRYPTX_BASEFOLDER', dirname(CRYPTX_PLUGIN_BASENAME));
24 46
25 -/////////////////////////////////////////////////////////////////////////////
47 +// Minimum requirements. Keep these in sync with the plugin header above and
48 +// with "Requires at least" / "Requires PHP" in readme.txt. They are defined
49 +// once and used both for the check and for the notice, so the number shown to
50 +// the user cannot drift away from the number actually enforced.
51 +define('CRYPTX_MIN_PHP', '8.1');
52 +define('CRYPTX_MIN_WP', '6.7');
26 53
27 -load_plugin_textdomain('cryptx', PLUGINDIR . '/' . dirname(plugin_basename (__FILE__)) );
28 -
29 -$cryptX_var = (array) get_option('cryptX');
30 -
31 54 /**
32 -* "CryptX" WordPress Plugin
33 -*
34 -* @author Ralf Weber <ralf@weber-nrw.de>
35 -* @license http://opensource.org/licenses/gpl-license.php GNU Public License
36 -*/
37 -Class cryptX {
55 + * Shows an admin notice to whoever is in a position to act on it.
56 + *
57 + * Registered on both admin_notices and network_admin_notices. Without the
58 + * second, a network administrator working in the network backend -- the only
59 + * person who can deactivate a network-activated plugin -- never saw that the
60 + * server runs too old a PHP, or that a class file is missing. The capability
61 + * differs per screen: on a site it is activate_plugins, in the network backend
62 + * manage_network_plugins, which a mere site administrator does not hold.
63 + *
64 + * @param string $message The message, already translated and unescaped.
65 + *
66 + * @return void
67 + */
68 +function cryptx_admin_notice(string $message): void
69 +{
70 + $render = static function () use ($message): void {
71 + $capability = is_network_admin() ? 'manage_network_plugins' : 'activate_plugins';
38 72
39 - // -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
73 + if (!current_user_can($capability)) {
74 + return;
75 + }
40 76
41 - /**
42 - * Constructor
43 - *
44 - * This constructor attaches the needer plugin hook callbacks
45 - */
46 - function cryptX() {
77 + printf('<div class="notice notice-error"><p>%s</p></div>', esc_html($message));
78 + };
47 79
48 - global $cryptX_var;
80 + add_action('admin_notices', $render);
81 + add_action('network_admin_notices', $render);
82 +}
49 83
50 - // attach the converstion handlers
51 - //
52 - if (@$cryptX_var[theContent]) {
53 - $this->_filter('the_content');
54 - }
55 - if (@$cryptX_var[theExcerpt]) {
56 - $this->_filter('the_excerpt');
57 - }
84 +if (version_compare(PHP_VERSION, CRYPTX_MIN_PHP, '<')) {
85 + cryptx_admin_notice(sprintf(
86 + /* translators: %1$s: Required PHP version, %2$s: Current PHP version */
87 + __('CryptX requires PHP version %1$s or higher. You are running version %2$s. Please update PHP.', 'cryptx'),
88 + CRYPTX_MIN_PHP,
89 + PHP_VERSION
90 + ));
91 + return;
92 +}
58 93
59 - // attach to admin menu
60 - //
61 - if (is_admin()) {
62 - add_action('admin_menu',
63 - array(&$this, '_menu')
64 - );
65 - }
94 +// WordPress version check
95 +global $wp_version;
96 +if (version_compare($wp_version, CRYPTX_MIN_WP, '<')) {
97 + cryptx_admin_notice(sprintf(
98 + /* translators: %1$s: Required WordPress version, %2$s: Current WordPress version */
99 + __('CryptX requires WordPress version %1$s or higher. You are running version %2$s. Please update WordPress.', 'cryptx'),
100 + CRYPTX_MIN_WP,
101 + $GLOBALS['wp_version']
102 + ));
103 + return;
104 +}
66 105
67 - // attach to plugin installation
68 - //
69 - add_action(
70 - 'activate_' . str_replace(
71 - DIRECTORY_SEPARATOR, '/',
72 - str_replace(
73 - realpath(ABSPATH . PLUGINDIR) . DIRECTORY_SEPARATOR,
74 - '', __FILE__
75 - )
76 - ),
77 - array(&$this, '_install')
78 - );
106 +// Autoloader for plugin classes
107 +spl_autoload_register(function ($class) {
108 + // Check if the class belongs to our namespace
109 + if (strpos($class, 'CryptX\\') !== 0) {
110 + return;
111 + }
79 112
80 - // attach javascript to Header
81 - //
82 - if (@$cryptX_var[java]) {
83 - add_action(
84 - 'wp_head',
85 - array(&$this, '_header')
86 - );
87 - }
113 + // Remove namespace prefix
114 + $class = substr($class, 7);
88 115
89 - } // End function
116 + // Convert namespace separators to directory separators
117 + $class = str_replace('\\', DIRECTORY_SEPARATOR, $class);
90 118
91 - // -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
119 + // Build the full path
120 + $file = CRYPTX_DIR_PATH . 'classes' . DIRECTORY_SEPARATOR . $class . '.php';
92 121
93 - /**
94 - * Wrap _filter
95 - * @param string $content
96 - * @return string
97 - */
98 - function _filter($apply)
99 - {
100 - global $cryptX_var;
122 + // Include the file if it exists
123 + if (file_exists($file)) {
124 + require_once $file;
125 + }
126 +});
101 127
102 - if (@$cryptX_var[autolink]) {
103 - add_filter($apply,
104 - array(&$this, '_autolink'));
105 - }
106 - if (@$cryptX_var[java]) {
107 - add_filter($apply,
108 - array(&$this, '_encrypt'));
109 - } else {
110 - add_filter($apply,
111 - array(&$this, '_unicode'));
112 - }
128 +// The settings screen posts nothing: it talks to the REST routes in
129 +// CryptX\Admin\RestController, which carry their own capability check and are
130 +// covered by WordPress' REST nonce. The global cryptx_nonce_check() that used
131 +// to sit here guarded $_POST['cryptX_var'], a key nothing has sent since the
132 +// old settings form was removed in 4.1.0 -- a dead guard next to a live one is
133 +// a trap for whoever wires up the next form.
113 134
114 - }
135 +// Initialize the plugin
136 +add_action('plugins_loaded', function() {
137 + // Check if all required classes can be loaded
138 + $requiredClasses = [
139 + 'CryptX\\CryptX',
140 + 'CryptX\\Config',
141 + 'CryptX\\SecureEncryption',
142 + 'CryptX\\Exposure',
143 + 'CryptX\\Block',
144 + 'CryptX\\ImageToken',
145 + 'CryptX\\Admin\\NetworkDefaults',
146 + 'CryptX\\Admin\\SettingsPage',
147 + 'CryptX\\Admin\\SettingsSchema',
148 + 'CryptX\\Admin\\RestController',
149 + 'CryptX\\Admin\\SiteHealth',
150 + ];
115 151
116 - // -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
152 + $missingClasses = [];
153 + foreach ($requiredClasses as $class) {
154 + if (!class_exists($class)) {
155 + $missingClasses[] = $class;
156 + }
157 + }
117 158
118 - /**
119 - * Wrap _encrypt
120 - * @param string $content
121 - * @return string
122 - */
123 - function _encrypt($content)
124 - {
125 - global $cryptX_var;
159 + if (!empty($missingClasses)) {
160 + cryptx_admin_notice(
161 + __('CryptX: Missing required classes: ', 'cryptx') . implode(', ', $missingClasses)
162 + );
163 + return;
164 + }
126 165
127 - preg_match_all('/<a[^>]*href=["|\'](.*)["|\']*>(.*)<\/a>/iUs', $content, $links, PREG_SET_ORDER);
166 + // Initialize the main plugin class
167 + try {
168 + $cryptx_instance = CryptX\CryptX::get_instance();
169 + $cryptx_instance->startCryptX();
170 + cryptx_register_action_links();
128 171
129 - foreach( $links as $link ) {
172 + // Guarded here as well as inside register(), and deliberately not
173 + // listed in $requiredClasses above. Both of those would load the file
174 + // on every single front-end and admin request -- class_exists() runs
175 + // the autoloader, and so does a static call -- to register commands
176 + // that only exist under WP-CLI.
177 + //
178 + // class_exists() is still asked so that a package missing the file
179 + // cannot raise a fatal Error, which catch (Exception) below would not
180 + // have caught. It buys no notice: the commands are then simply absent.
181 + // That is the right silence -- nothing a visitor or an administrator
182 + // sees depends on them.
183 + if (defined('WP_CLI') && WP_CLI && class_exists('CryptX\Cli')) {
184 + CryptX\Cli::register();
185 + }
186 + } catch (Exception $e) {
187 + cryptx_admin_notice(
188 + __('CryptX initialization failed: ', 'cryptx') . $e->getMessage()
189 + );
190 + }
191 +});
130 192
131 - if(preg_match('/mailto:(.*)/', $link[1], $mail)) {
132 - $crypt = '';
133 - $ascii = 0;
134 - for ($i = 0; $i < strlen( $mail[1] ); $i++) {
135 - $ascii = ord ( substr ( $mail[1], $i ) );
136 - if (8364 <= $char) {
137 - $ascii = 128;
138 - }
139 - $crypt .= chr($ascii + 1);
140 - }
141 - $temp = str_replace( $link[1], "javascript:DeCryptX('" . $crypt . "')", $link[0]);
142 - $new_mail = str_replace( "@", $cryptX_var[at], $link[2]);
143 - $new_mail = str_replace( ".", $cryptX_var[dot], $new_mail);
144 - $temp = str_replace( $link[2], $new_mail, $temp);
145 - $content = str_replace( $link[0], $temp, $content);
146 - }
193 +/**
194 + * Runs a callback once for every site of the network, in batches.
195 + *
196 + * get_sites() without a limit pulls the whole network into memory, and a
197 + * network can have thousands of sites. Same construction as uninstall.php,
198 + * deliberately: the two do the same job at opposite ends of the plugin's life,
199 + * and one of them being cleverer than the other only makes both harder to
200 + * trust.
201 + *
202 + * On a single site the callback simply runs once.
203 + *
204 + * @param callable $callback Receives nothing; runs with the site switched in.
205 + *
206 + * @return void
207 + */
208 +function cryptx_for_each_site(callable $callback): void
209 +{
210 + if (!is_multisite()) {
211 + $callback();
147 212
148 - } // foreach
213 + return;
214 + }
149 215
216 + $batch_size = 100;
217 + $offset = 0;
150 218
151 - return $content;
152 - }
219 + do {
220 + $site_ids = get_sites([
221 + 'fields' => 'ids',
222 + 'number' => $batch_size,
223 + 'offset' => $offset,
224 + 'orderby' => 'id',
225 + 'update_site_meta_cache' => false,
226 + ]);
153 227
154 - // -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
228 + foreach ($site_ids as $site_id) {
229 + switch_to_blog($site_id);
155 230
156 - /**
157 - * Wrap _unicode
158 - * @param string $content
159 - * @return string
160 - */
161 - function _unicode($content)
162 - {
163 - global $cryptX_var;
231 + // finally, so a failing callback does not leave the blog stack
232 + // switched for whatever runs next. It does not keep the loop
233 + // going: an exception still travels upwards and the remaining
234 + // sites are skipped. Catching it here would hide a broken site
235 + // instead, and that is a trade to make deliberately, not in
236 + // passing.
237 + try {
238 + $callback();
239 + } finally {
240 + restore_current_blog();
241 + }
242 + }
164 243
165 - preg_match_all('/<a[^>]*href=["|\'](.*)["|\']*>(.*)<\/a>/iUs', $content, $links, PREG_SET_ORDER);
244 + $offset += $batch_size;
245 + } while (count($site_ids) === $batch_size);
246 +}
166 247
167 - foreach( $links as $link ) {
248 +/**
249 + * Removes the plugin's transients from the site that is currently switched in.
250 + *
251 + * @return void
252 + */
253 +function cryptx_delete_transients(): void
254 +{
255 + global $wpdb;
168 256
169 - if(preg_match('/mailto:(.*)/', $link[1], $mail)) {
170 - $mailto = "mailto:" . $mail[1];
171 - $crypt = '';
172 - for ($i = 0; $i < strlen( $mailto ); $i++) {
173 - $crypt .= "&#" . ord ( substr ( $mailto, $i ) ) . ";";
174 - }
175 - $content = str_replace( $mailto, $crypt, $content);
176 - $new_mail = str_replace( "@", $cryptX_var[at], $link[2]);
177 - $new_mail = str_replace( ".", $cryptX_var[dot], $new_mail);
178 - $content = str_replace( $link[2], $new_mail, $content);
179 - }
257 + // The LIKE patterns run through $wpdb->esc_like() and $wpdb->prepare().
258 + // No user input is involved here, so this is not a hole, but "_" is a
259 + // single-character wildcard in LIKE: unescaped, '_transient_cryptx_%' also
260 + // matches names like 'Xtransient1cryptxZ...' belonging to other plugins.
261 + // esc_like() turns those underscores into literal ones. The table name is
262 + // an identifier, not a value, and therefore must stay outside prepare().
263 + $transientLike = $wpdb->esc_like('_transient_cryptx_') . '%';
264 + $transientTimeoutLike = $wpdb->esc_like('_transient_timeout_cryptx_') . '%';
180 265
181 - } // foreach
182 - return $content;
183 - }
266 + // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
267 + $wpdb->query($wpdb->prepare("DELETE FROM {$wpdb->options} WHERE option_name LIKE %s", $transientLike));
268 + // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
269 + $wpdb->query($wpdb->prepare("DELETE FROM {$wpdb->options} WHERE option_name LIKE %s", $transientTimeoutLike));
270 +}
184 271
185 - // -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
272 +/**
273 + * Sets up the plugin's options for the site that is currently switched in.
274 + *
275 + * @return void
276 + */
277 +function cryptx_install_site(): void
278 +{
279 + if (!class_exists('CryptX\\CryptX')) {
280 + return;
281 + }
186 282
187 - function _autolink($content) {
283 + CryptX\CryptX::get_instance()->installCryptX();
284 +}
188 285
189 - $src[]="/([\s])([_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*(\.[a-zA-Z]{2,}))/si";
190 - $src[]="/(>)([_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*(\.[a-zA-Z]{2,}))(<)/si";
191 - $src[]="/^([_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*(\.[a-zA-Z]{2,}))/si";
192 - $src[]="/(<a[^>]*>)<a[^>]*>/";
193 - $src[]="/(<\/A>)<\/A>/i";
286 +// Activation.
287 +//
288 +// $network_wide is true when someone ticks "Network Activate". WordPress then
289 +// fires this hook exactly once, not once per site -- so without the loop, every
290 +// site but the current one is left without its stored options and, more to the
291 +// point, without the one-time migration of the pre-4.0 "cryptxoff" post meta.
292 +// The plugin still works there, because the defaults fill in, but a site that
293 +// carried excluded posts from an old version would silently lose them.
294 +register_activation_hook(__FILE__, function ($network_wide = false) {
295 + if ($network_wide) {
296 + cryptx_for_each_site('cryptx_install_site');
297 + } else {
298 + cryptx_install_site();
299 + }
194 300
195 - $tar[]="\\1<a href=\"mailto:\\2\">\\2</a>";
196 - $tar[]="\\1<a href=\"mailto:\\2\">\\2</a>\\6";
197 - $tar[]="<a href=\"mailto:\\0\">\\0</a>";
198 - $tar[]="\\1";
199 - $tar[]="\\1";
301 + flush_rewrite_rules();
302 +});
200 303
201 - $content = preg_replace($src,$tar,$content);
304 +// Deactivation. Same reason, other direction: the transients of every site but
305 +// the current one used to survive a network deactivation.
306 +register_deactivation_hook(__FILE__, function ($network_wide = false) {
307 + if ($network_wide) {
308 + cryptx_for_each_site('cryptx_delete_transients');
309 + } else {
310 + cryptx_delete_transients();
311 + }
312 +});
202 313
203 - return $content;
204 - }
314 +// A site created while the plugin is network-active gets the same treatment as
315 +// one that existed at activation time. Without this the new site works -- the
316 +// defaults see to that -- but nothing is ever written until someone saves, and
317 +// the behaviour differs from every other site in the network for no reason
318 +// anybody could see.
319 +add_action('wp_initialize_site', function ($site) {
320 + // The network option directly, not is_plugin_active_for_network(): that
321 + // lives in wp-admin/includes/plugin.php, which is not loaded when a site is
322 + // created over the REST API or WP-CLI -- exactly the paths that create sites
323 + // in bulk.
324 + $network_active = get_site_option('active_sitewide_plugins', []);
205 325
206 - // -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
326 + if (!isset($network_active[CRYPTX_PLUGIN_BASENAME])) {
327 + return;
328 + }
207 329
208 - /**
209 - * Performs the routines required at plugin installation:
210 - * in general introducing the settings array
211 - */
212 - function _install() {
213 - add_option(
214 - 'cryptX',
215 - array(
216 - 'at' => ' [at] ',
217 - 'dot' => ' [dot] ',
218 - 'theContent' => 1,
219 - 'theExcerpt' => 0,
220 - 'java' => 1,
221 - )
222 - );
223 - }
330 + $site_id = is_object($site) ? (int) $site->blog_id : (int) $site;
224 331
225 - // -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
332 + switch_to_blog($site_id);
333 + cryptx_install_site();
334 + restore_current_blog();
335 +}, 20);
226 336
227 - /**
228 - * Attach the menu page to the `Options` tab
229 - */
230 - function _header()
231 - {
232 - $cryptX_script.= "<script type=\"text/javascript\" src=\"" . get_option('siteurl') . '/' . PLUGINDIR . '/' . dirname(plugin_basename (__FILE__)) . "/js/cryptx.js\"></script>\n";
233 - print($cryptX_script);
234 - }
337 +// Add plugin action links.
338 +//
339 +// Registered inside the successful-initialisation path on purpose, not at the
340 +// top level of this file. It refers to a class constant, and the plugins screen
341 +// is exactly where someone goes to switch off a plugin whose class files are
342 +// missing -- a fatal error there would take away the only lever they have.
343 +// A plugin that did not initialise has no settings page to link to anyway.
344 +function cryptx_register_action_links(): void
345 +{
346 + add_filter('plugin_action_links_' . CRYPTX_PLUGIN_BASENAME, function ($links) {
347 + $settings_link = '<a href="' .
348 + esc_url(admin_url('options-general.php?page=' . CryptX\Admin\SettingsPage::MENU_SLUG)) .
349 + '">' . esc_html__('Settings', 'cryptx') . '</a>';
350 + array_unshift($links, $settings_link);
235 351
236 - // -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
352 + return $links;
353 + });
354 +}
237 355
238 - /**
239 - * Attach the menu page to the `Options` tab
240 - */
241 - function _menu() {
242 - add_submenu_page('options-general.php',
243 - 'CryptX',
244 - 'CryptX', 9,
245 - __FILE__,
246 - array($this, '_submenu')
247 - );
248 - }
356 +/**
357 + * Encrypts the given content using the CryptX library and wraps it with a shortcode.
358 + *
359 + * @param string $content The content to be encrypted.
360 + * @param array|null $args Optional arguments to customize the encryption process.
361 + *
362 + * @return string The encrypted content wrapped in the appropriate shortcode.
363 + */
364 +if (!function_exists('cryptx_encrypt')) {
365 + function cryptx_encrypt(string $content, ?array $args = []): string
366 + {
367 + $cryptXInstance = Cryptx\CryptX::get_instance();
368 + // $attributesString contains the escaped (esc_attr()) shortcode attributes from $args
369 + // The signature allows null, convertArrayToArgumentString() does not.
370 + $attributesString = $cryptXInstance->convertArrayToArgumentString($args ?? []);
249 371
250 - /**
251 - * Handles and renders the menu page
252 - */
253 - function _submenu() {
254 - global $cryptX_var;
372 + // wp_kses_post() and not esc_html(): the caller passes content, and
373 + // content in WordPress may carry markup. esc_html() turned a "<br>" in
374 + // a theme field into a visible "&lt;br&gt;" -- reported in the support
375 + // forum, and worked around there with html_entity_decode(), which
376 + // undoes the plugin's own protection in the Unicode and entity modes.
377 + // wp_kses_post keeps what a post may contain and drops the rest.
378 + $shortcode = '[cryptx' . $attributesString . ']' . wp_kses_post($content) . '[/cryptx]';
255 379
256 - // sanitize referrer
257 - //
258 - $_SERVER['HTTP_REFERER'] = preg_replace(
259 - '~&saved=.*$~Uis','', $_SERVER['HTTP_REFERER']
260 - );
261 -
262 - // information updated ?
263 - //
264 - if ($_POST['submit']) {
265 -
266 - // save
267 - //
268 - update_option(
269 - 'cryptX',
270 - $_POST['cryptX_var']
271 - );
272 -
273 - die("<script>document.location.href = '{$_SERVER['HTTP_REFERER']}&saved=settings:" . time() . "';</script>");
274 - }
275 -
276 - // operation report detected
277 - //
278 - if (@$_GET['saved']) {
279 -
280 - list($saved, $ts) = explode(':', $_GET['saved']);
281 - if (time() - $ts < 10) {
282 - echo '<div id="message" class="updated fade"><p><strong>';
283 -
284 - switch ($saved) {
285 - case 'settings' :
286 - echo 'Settings saved.';
287 - break;
288 - }
289 -
290 - echo '</strong></p></div>';
291 - }
292 - }
293 -
294 - // read the settings
295 - //
296 - //$cryptX = (array) get_option('cryptX');
297 -
298 -?>
299 -<!-- Start Optionen im Adminbereich (xhtml, au�erhalb PHP) -->
300 -<div class="wrap">
301 - <h2><?php _e("CryptX Options...",'cryptx'); ?></h2>
302 - <form method="post">
303 - <blockquote>
304 - <table>
305 - <tr>
306 - <td valign="top"><?php _e("Replacement for '@'",'cryptx'); ?>
307 - <input name="cryptX_var[at]" value="<?php echo $cryptX_var[at]; ?>" type="text" /></td>
308 - </tr>
309 - <tr>
310 - <td valign="top"><?php _e("Replacement for '.'",'cryptx'); ?>
311 - <input name="cryptX_var[dot]" value="<?php echo $cryptX_var[dot]; ?>" type="text" /></td>
312 - </tr>
313 - <tr>
314 - <td valign="top"><input name="cryptX_var[theContent]" <?php echo ($cryptX_var[theContent]) ? 'checked="checked"' : ''; ?> type="checkbox" />
315 - <?php _e("Apply CryptX to the Content",'cryptx'); ?></td>
316 - </tr>
317 - <tr>
318 - <td valign="top"><input name="cryptX_var[theExcerpt]" <?php echo ($cryptX_var[theExcerpt]) ? 'checked="checked"' : ''; ?> type="checkbox" />
319 - <?php _e("Apply CryptX to the Excerpt",'cryptx'); ?></td>
320 - </tr>
321 - <tr>
322 - <td valign="top">
323 - <input name="cryptX_var[java]" <?php echo ($cryptX_var[java]) ? 'checked="checked"' : ''; ?> type="radio" value="1" />
324 - <?php _e("Use javascript to hide the Email-Link.",'cryptx'); ?><br />
325 - <input name="cryptX_var[java]" <?php echo (!$cryptX_var[java]) ? 'checked="checked"' : ''; ?> type="radio" value="0" />
326 - <?php _e("Use Unicode to hide the Email-Link.",'cryptx'); ?>
327 - </td>
328 - </tr>
329 - <tr>
330 - <td valign="top"><input name="cryptX_var[autolink]" <?php echo ($cryptX_var[autolink]) ? 'checked="checked"' : ''; ?> type="checkbox" />
331 - <?php _e("Add mailto to all unlinked email addresses",'cryptx'); ?></td>
332 - </tr>
333 - <tr>
334 - <td><input type="submit" name="submit" value="Update &raquo;" /></td>
335 - </tr>
336 - </table>
337 - </blockquote>
338 - </form>
339 -</div>
340 -<?php
341 - }
342 -
343 - // -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
344 -
345 -
346 - //--end-of-class
347 - }
348 -
380 + return do_shortcode($shortcode);
381 + }
349 382 }
350 383
351 -/////////////////////////////////////////////////////////////////////////////
352 -
353 384 /**
354 -* Initiating the plugin...
355 -* @see cryptX
356 -*/
357 -new cryptX;
385 + * Encrypts the given content using the CryptX library and wraps it with a shortcode.
386 + *
387 + * @deprecated 4.0.5 Use cryptx_encrypt() instead.
388 + * @see cryptx_encrypt()
389 + */
390 +if (!function_exists('encryptx')) {
391 + function encryptx(string $content, ?array $args = []): string
392 + {
393 + _doing_it_wrong(
394 + 'encryptx',
395 + esc_html__('This function is deprecated. Use cryptx_encrypt() instead.', 'cryptx'),
396 + '4.0.5'
397 + );
358 398
359 -?>
399 + return cryptx_encrypt($content, $args);
400 + }
401 +}