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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 +401 -480 1.9 → 4.2.1 View file →
@@ -1,480 +1,401 @@
1 -<?php
2 -/*
3 -Plugin Name: CryptX
4 -Plugin URI: http://weber-nrw.de/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: 1.9
7 -Author: Ralf Weber
8 -Author URI: http://weber-nrw.de/
9 -*/
10 -
11 -/////////////////////////////////////////////////////////////////////////////
12 -
13 -/**
14 -* @internal prevent from direct calls
15 -*/
16 -if (!defined('ABSPATH')) {
17 - return ;
18 - }
19 -
20 -/**
21 -* @internal prevent from second inclusion
22 -*/
23 -if (!class_exists('cryptX')) {
24 -
25 -/////////////////////////////////////////////////////////////////////////////
26 -
27 -load_plugin_textdomain('cryptx', PLUGINDIR . '/' . dirname(plugin_basename (__FILE__)) . '/languages');
28 -
29 -$cryptX_var = (array) get_option('cryptX');
30 -
31 -/**
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 {
38 -
39 - // -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40 -
41 - /**
42 - * Constructor
43 - *
44 - * This constructor attaches the needer plugin hook callbacks
45 - */
46 - function cryptX() {
47 -
48 - global $cryptX_var;
49 -
50 - // attach the converstion handlers
51 - //
52 - if (@$cryptX_var[theContent]) {
53 - $this->_filter('the_content');
54 - }
55 - if (@$cryptX_var[theExcerpt]) {
56 - $this->_filter('the_excerpt');
57 - }
58 - if (@$cryptX_var[commentText]) {
59 - $this->_filter('comment_text');
60 - }
61 -
62 - // attach to admin menu
63 - //
64 - if (is_admin()) {
65 - add_action('admin_menu',
66 - array(&$this, '_menu')
67 - );
68 - }
69 -
70 - // attach to plugin installation
71 - //
72 - add_action(
73 - 'activate_' . str_replace(
74 - DIRECTORY_SEPARATOR, '/',
75 - str_replace(
76 - realpath(ABSPATH . PLUGINDIR) . DIRECTORY_SEPARATOR,
77 - '', __FILE__
78 - )
79 - ),
80 - array(&$this, '_install')
81 - );
82 -
83 - // attach javascript to Header
84 - //
85 - if (@$cryptX_var[java]) {
86 - add_action(
87 - 'wp_head',
88 - array(&$this, '_header')
89 - );
90 - }
91 -
92 - } // End function
93 -
94 - // -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
95 -
96 - function _filter($apply)
97 - {
98 - global $cryptX_var;
99 -
100 - if (@$cryptX_var[autolink]) {
101 - add_filter($apply,
102 - array(&$this, '_autolink'));
103 - }
104 - if (@$cryptX_var[java]) {
105 - add_filter($apply,
106 - array(&$this, '_encrypt'));
107 - } else {
108 - add_filter($apply,
109 - array(&$this, '_unicode'));
110 - }
111 -
112 - }
113 -
114 - // -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
115 -
116 - function _linktext($txt)
117 - {
118 - global $cryptX_var;
119 -
120 - switch ($cryptX_var[opt_linktext]) {
121 -
122 - case 1: // alternative text for mail link
123 - $linktext = $cryptX_var[alt_linktext];
124 - break;
125 -
126 - case 2: // alternative image for mail link
127 - $linktext = "<img src=\"" . $cryptX_var[alt_linkimage] . "\" class=\"cryptxImage\" alt=\"" . $cryptX_var[alt_linkimage_title] . "\" title=\"" . $cryptX_var[alt_linkimage_title] . "\">";
128 - break;
129 -
130 - case 3: // uploaded image for mail link
131 - $imgurl = "/" . PLUGINDIR . "/" . dirname(plugin_basename (__FILE__)) . "/images/" . $cryptX_var[alt_uploadedimage];
132 - $linktext = "<img src=\"" . $imgurl . "\" class=\"cryptxImage\" alt=\"" . $cryptX_var[http_linkimage_title] . "\" title=\"" . $cryptX_var[http_linkimage_title] . "\">";
133 - break;
134 -
135 - case 4: // text scrambled by antispambot
136 - $linktext = antispambot($txt);
137 - break;
138 -
139 - default:
140 - $linktext = str_replace( "@", $cryptX_var[at], $txt);
141 - $linktext = str_replace( ".", $cryptX_var[dot], $linktext);
142 -
143 - }
144 -
145 - return $linktext;
146 - }
147 -
148 - // -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
149 -
150 - function _dirImages()
151 - {
152 - $dir = $_SERVER["DOCUMENT_ROOT"].'/'.PLUGINDIR.'/'.dirname(plugin_basename (__FILE__)).'/images';
153 - $fh = opendir($dir); //Verzeichnis
154 - $verzeichnisinhalt = array();
155 - while (true == ($file = readdir($fh)))
156 - {
157 - if ((substr(strtolower($file), -3)=="jpg") or (substr(strtolower($file), -3)=="gif")) //Abfrage nach g�ltigen Datenformat
158 - {
159 - $verzeichnisinhalt[] = $file;
160 - }
161 - }
162 - return $verzeichnisinhalt;
163 - }
164 -
165 - // -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
166 -
167 - function _encrypt($content)
168 - {
169 - global $cryptX_var;
170 -
171 - preg_match_all('/<a[^>]*href=["|\'](.*)["|\'].*>(.*)<\/a>/iUs', $content, $links, PREG_SET_ORDER);
172 -
173 - foreach( $links as $link ) {
174 -
175 - if(preg_match('/mailto:(.*)/', $link[1], $mail)) {
176 - $crypt = '';
177 - $ascii = 0;
178 - for ($i = 0; $i < strlen( $mail[1] ); $i++) {
179 - $ascii = ord ( substr ( $mail[1], $i ) );
180 - if (8364 <= $char) {
181 - $ascii = 128;
182 - }
183 - $crypt .= chr($ascii + 1);
184 - }
185 - $temp = str_replace( $link[1], "javascript:DeCryptX('" . $crypt . "')", $link[0]);
186 - $temp = str_replace( $link[2], $this->_linktext($link[2]), $temp);
187 - $content = str_replace( $link[0], $temp, $content);
188 - }
189 -
190 - } // foreach
191 -
192 -
193 - return $content;
194 - }
195 -
196 - // -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
197 -
198 - function _unicode($content)
199 - {
200 - global $cryptX_var;
201 -
202 - preg_match_all('/<a[^>]*href=["|\'](.*)["|\'].*>(.*)<\/a>/iUs', $content, $links, PREG_SET_ORDER);
203 -
204 - foreach( $links as $link ) {
205 -
206 - if(preg_match('/mailto:(.*)/', $link[1], $mail)) {
207 - $mailto = "mailto:" . $mail[1];
208 -/*
209 - $crypt = '';
210 - for ($i = 0; $i < strlen( $mailto ); $i++) {
211 - $crypt .= "&#" . ord ( substr ( $mailto, $i ) ) . ";";
212 - }
213 - $content = str_replace( $mailto, $crypt, $content);
214 -*/
215 - $content = str_replace( $mailto, antispambot($mailto), $content);
216 - $content = str_replace( $link[2], $this->_linktext($link[2]), $content);
217 - }
218 -
219 - } // foreach
220 - return $content;
221 - }
222 -
223 - // -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
224 -
225 - function _autolink($content) {
226 -
227 - $src[]="/([\s])([_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*(\.[a-zA-Z]{2,}))/si";
228 - $src[]="/(>)([_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*(\.[a-zA-Z]{2,}))(<)/si";
229 - $src[]="/^([_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*(\.[a-zA-Z]{2,}))/si";
230 - $src[]="/(<a[^>]*>)<a[^>]*>/";
231 - $src[]="/(<\/A>)<\/A>/i";
232 -
233 - $tar[]="\\1<a href=\"mailto:\\2\">\\2</a>";
234 - $tar[]="\\1<a href=\"mailto:\\2\">\\2</a>\\6";
235 - $tar[]="<a href=\"mailto:\\0\">\\0</a>";
236 - $tar[]="\\1";
237 - $tar[]="\\1";
238 -
239 - $content = preg_replace($src,$tar,$content);
240 -
241 - return $content;
242 - }
243 -
244 - // -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
245 -
246 -
247 - function _install() {
248 - add_option(
249 - 'cryptX',
250 - array(
251 - 'at' => ' [at] ',
252 - 'dot' => ' [dot] ',
253 - 'theContent' => 1,
254 - 'theExcerpt' => 0,
255 - 'java' => 1,
256 - 'opt_linktext' => 0,
257 - )
258 - );
259 - }
260 -
261 - // -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
262 -
263 - /**
264 - * Attach the menu page to the `Options` tab
265 - */
266 - function _header()
267 - {
268 - $cryptX_script.= "<script type=\"text/javascript\" src=\"" . get_option('siteurl') . '/' . PLUGINDIR . '/' . dirname(plugin_basename (__FILE__)) . "/js/cryptx.js\"></script>\n";
269 - print($cryptX_script);
270 - }
271 -
272 - // -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
273 -
274 - /**
275 - * Attach the menu page to the `Options` tab
276 - */
277 - function _menu() {
278 - add_submenu_page('options-general.php',
279 - 'CryptX',
280 - 'CryptX', 9,
281 - __FILE__,
282 - array($this, '_submenu')
283 - );
284 - }
285 -
286 - /**
287 - * Handles and renders the menu page
288 - */
289 - function _submenu() {
290 - global $cryptX_var;
291 -
292 - // sanitize referrer
293 - //
294 - $_SERVER['HTTP_REFERER'] = preg_replace(
295 - '~&saved=.*$~Uis','', $_SERVER['HTTP_REFERER']
296 - );
297 -
298 - // information updated ?
299 - //
300 - if ($_POST['submit']) {
301 -
302 - // save
303 - //
304 - update_option(
305 - 'cryptX',
306 - $_POST['cryptX_var']
307 - );
308 -
309 - die("<script>document.location.href = '{$_SERVER['HTTP_REFERER']}&saved=settings:" . time() . "';</script>");
310 - }
311 -
312 - // operation report detected
313 - //
314 - if (@$_GET['saved']) {
315 -
316 - list($saved, $ts) = explode(':', $_GET['saved']);
317 - if (time() - $ts < 10) {
318 - echo '<div id="message" class="updated fade"><p><strong>';
319 -
320 - switch ($saved) {
321 - case 'settings' :
322 - echo 'Settings saved.';
323 - break;
324 - }
325 -
326 - echo '</strong></p></div>';
327 - }
328 - }
329 -
330 - // read the settings
331 - //
332 - //$cryptX = (array) get_option('cryptX');
333 -
334 -?>
335 -<!-- Start Optionen im Adminbereich (xhtml, au�erhalb PHP) -->
336 -<div class="wrap">
337 - <h2><?php _e("CryptX Options...",'cryptx'); ?></h2>
338 - <form method="post">
339 - <blockquote>
340 - <fieldset>
341 - <legend><?php _e("Presentation",'cryptx'); ?></legend>
342 - <table>
343 - <tr>
344 - <td><input name="cryptX_var[opt_linktext]" type="radio" id="opt_linktext" value="0" <?php echo ($cryptX_var[opt_linktext] == 0) ? 'checked="checked"' : ''; ?> />&nbsp;&nbsp;</td>
345 - <td nowrap><?php _e("Replacement for '@'",'cryptx'); ?>&nbsp;&nbsp;</td>
346 - <td ><input name="cryptX_var[at]" value="<?php echo $cryptX_var[at]; ?>" type="text" /></td>
347 - </tr>
348 - <tr>
349 - <td>&nbsp;</td>
350 - <td nowrap><?php _e("Replacement for '.'",'cryptx'); ?>&nbsp;&nbsp;</td>
351 - <td><input name="cryptX_var[dot]" value="<?php echo $cryptX_var[dot]; ?>" type="text" /></td>
352 - </tr>
353 - <tr>
354 - <td><input type="radio" name="cryptX_var[opt_linktext]" id="opt_linktext2" value="1" <?php echo ($cryptX_var[opt_linktext] == 1) ? 'checked="checked"' : ''; ?>/></td>
355 - <td nowrap><?php _e("Text for link",'cryptx'); ?>&nbsp;&nbsp;</td>
356 - <td><input name="cryptX_var[alt_linktext]" value="<?php echo $cryptX_var[alt_linktext]; ?>" type="text" /></td>
357 - </tr>
358 - <tr>
359 - <td><input type="radio" name="cryptX_var[opt_linktext]" id="opt_linktext3" value="2" <?php echo ($cryptX_var[opt_linktext] == 2) ? 'checked="checked"' : ''; ?>/></td>
360 - <td nowrap><?php _e("Image-URL",'cryptx'); ?>&nbsp;&nbsp;</td>
361 - <td><input name="cryptX_var[alt_linkimage]" value="<?php echo $cryptX_var[alt_linkimage]; ?>" type="text" /></td>
362 - </tr>
363 - <tr>
364 - <td>&nbsp;</td>
365 - <td nowrap><?php _e("Title-Tag for the Image",'cryptx'); ?>&nbsp;&nbsp;</td>
366 - <td><input name="cryptX_var[http_linkimage_title]" value="<?php echo $cryptX_var[http_linkimage_title]; ?>" type="text" /></td>
367 - </tr>
368 - <tr>
369 - <td><input type="radio" name="cryptX_var[opt_linktext]" id="opt_linktext4" value="3" <?php echo ($cryptX_var[opt_linktext] == 3) ? 'checked="checked"' : ''; ?>/></td>
370 - <td nowrap><?php _e("Select image from folder",'cryptx'); ?>&nbsp;&nbsp;</td>
371 - <td><select name="cryptX_var[alt_uploadedimage]">
372 - <?php foreach($this->_dirImages() as $image) { ?>
373 - <option <?php echo ($cryptX_var[alt_uploadedimage] == $image) ? 'selected' : ''; ?> ><?php echo $image; ?></option>
374 - <?php } ?>
375 - </select></td>
376 - </tr>
377 - <tr>
378 - <td>&nbsp;</td>
379 - <td nowrap><?php _e("Title-Tag for the Image",'cryptx'); ?>&nbsp;&nbsp;</td>
380 - <td><input name="cryptX_var[alt_linkimage_title]" value="<?php echo $cryptX_var[alt_linkimage_title]; ?>" type="text" /></td>
381 - </tr>
382 - <tr>
383 - <td>&nbsp;</td>
384 - <td nowrap colspan="2"><?php _e("Upload your favorite email-image to ../plugins/cryptx/images. Only .jpg and .gif Supported!",'cryptx'); ?></td>
385 - </tr>
386 - <tr>
387 - <td><input type="radio" name="cryptX_var[opt_linktext]" id="opt_linktext2" value="4" <?php echo ($cryptX_var[opt_linktext] == 4) ? 'checked="checked"' : ''; ?>/></td>
388 - <td nowrap colspan="2"><?php _e("Text scrambled by AntiSpamBot (<small>Try it and look at your site and check the html source!</small>)",'cryptx'); ?>&nbsp;&nbsp;</td>
389 - </tr>
390 - </table>
391 - </fieldset><br />
392 - <fieldset>
393 - <legend><?php _e("General",'cryptx'); ?></legend>
394 - <table>
395 - <tr>
396 - <td valign="top"><input name="cryptX_var[theContent]" <?php echo ($cryptX_var[theContent]) ? 'checked="checked"' : ''; ?> type="checkbox" />&nbsp;&nbsp;</td>
397 - <td nowrap><?php _e("Apply CryptX to the Content",'cryptx'); ?></td>
398 - </tr>
399 - <tr>
400 - <td valign="top"><input name="cryptX_var[theExcerpt]" <?php echo ($cryptX_var[theExcerpt]) ? 'checked="checked"' : ''; ?> type="checkbox" /></td>
401 - <td nowrap><?php _e("Apply CryptX to the Excerpt",'cryptx'); ?></td>
402 - </tr>
403 - <tr>
404 - <td valign="top"><input name="cryptX_var[commentText]" <?php echo ($cryptX_var[commentText]) ? 'checked="checked"' : ''; ?> type="checkbox" /></td>
405 - <td nowrap><?php _e("Apply CryptX to the Comments",'cryptx'); ?></td>
406 - </tr>
407 - </table><br />
408 - <table>
409 - <tr>
410 - <td valign="top">
411 - <input name="cryptX_var[java]" <?php echo ($cryptX_var[java]) ? 'checked="checked"' : ''; ?> type="radio" value="1" /></td>
412 - <td nowrap><?php _e("Use javascript to hide the Email-Link.",'cryptx'); ?></td>
413 - </tr>
414 - <tr>
415 - <td valign="top"><input name="cryptX_var[java]" <?php echo (!$cryptX_var[java]) ? 'checked="checked"' : ''; ?> type="radio" value="0" /></td>
416 - <td nowrap><?php _e("Use Unicode to hide the Email-Link.",'cryptx'); ?>
417 - </td>
418 - </tr>
419 - </table><br />
420 - <table>
421 - <tr>
422 - <td valign="top"><input name="cryptX_var[autolink]" <?php echo ($cryptX_var[autolink]) ? 'checked="checked"' : ''; ?> type="checkbox" /></td>
423 - <td nowrap><?php _e("Add mailto to all unlinked email addresses",'cryptx'); ?></td>
424 - </tr>
425 - </table>
426 - </fieldset>
427 - <input type="submit" name="submit" value="<?php _e("Update &raquo;",'cryptx'); ?>" />
428 - </blockquote>
429 - </form>
430 -</div>
431 -<?php
432 - }
433 -
434 - // -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
435 -
436 -
437 - //--end-of-class
438 - }
439 -
440 -}
441 -
442 -/////////////////////////////////////////////////////////////////////////////
443 -
444 -/**
445 -* Initiating the plugin...
446 -* @see cryptX
447 -*/
448 -new cryptX;
449 -
450 -/**
451 -* Create Template functions...
452 -* $content = string to convert
453 -* $text = string to replace linktext
454 -* $echo = 0: keep result in a variable, 1: show result
455 -*/
456 -function cryptx( $content, $text="", $css="", $echo=1 )
457 -{
458 - global $cryptX_var;
459 -
460 - $cryptX = new cryptX;
461 -
462 - $content = $cryptX->_autolink( $content );
463 -
464 - if(@$cryptX_var[java]) {
465 - $content = $cryptX->_encrypt( $content );
466 - } else {
467 - $content = $cryptX->_unicode( $content );
468 - }
469 -
470 - if("" != $text) {
471 - $content = preg_replace( "/(<a[^>]*>)(.*)(<\/a>)/i", '$1'.$text.'$3', $content );
472 - }
473 - if("" != $css) {
474 - $content = preg_replace( "/(<a[^>]*)(>)/i", '$1 class="'.$css.'"$2', $content );
475 - }
476 - if(1 == $echo) echo $content;
477 -
478 - return $content;
479 -}
480 -?>
1 +<?php
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 + */
32 +
33 +// Prevent direct access
34 +if (!defined('ABSPATH')) {
35 + exit;
36 +}
37 +
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));
46 +
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');
53 +
54 +/**
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 + $capability = is_network_admin() ? 'manage_network_plugins' : 'activate_plugins';
72 +
73 + if (!current_user_can($capability)) {
74 + return;
75 + }
76 +
77 + printf('<div class="notice notice-error"><p>%s</p></div>', esc_html($message));
78 + };
79 +
80 + add_action('admin_notices', $render);
81 + add_action('network_admin_notices', $render);
82 +}
83 +
84 +if (version_compare(PHP_VERSION, CRYPTX_MIN_PHP, '<')) {
85 + cryptx_admin_notice(sprintf(
86 + /* translators: %1$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 +}
93 +
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 + $GLOBALS['wp_version']
102 + ));
103 + return;
104 +}
105 +
106 +// Autoloader for plugin classes
107 +spl_autoload_register(function ($class) {
108 + // Check if the class belongs to our namespace
109 + if (strpos($class, 'CryptX\\') !== 0) {
110 + return;
111 + }
112 +
113 + // Remove namespace prefix
114 + $class = substr($class, 7);
115 +
116 + // Convert namespace separators to directory separators
117 + $class = str_replace('\\', DIRECTORY_SEPARATOR, $class);
118 +
119 + // Build the full path
120 + $file = CRYPTX_DIR_PATH . 'classes' . DIRECTORY_SEPARATOR . $class . '.php';
121 +
122 + // Include the file if it exists
123 + if (file_exists($file)) {
124 + require_once $file;
125 + }
126 +});
127 +
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.
134 +
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 + ];
151 +
152 + $missingClasses = [];
153 + foreach ($requiredClasses as $class) {
154 + if (!class_exists($class)) {
155 + $missingClasses[] = $class;
156 + }
157 + }
158 +
159 + if (!empty($missingClasses)) {
160 + cryptx_admin_notice(
161 + __('CryptX: Missing required classes: ', 'cryptx') . implode(', ', $missingClasses)
162 + );
163 + return;
164 + }
165 +
166 + // Initialize the main plugin class
167 + try {
168 + $cryptx_instance = CryptX\CryptX::get_instance();
169 + $cryptx_instance->startCryptX();
170 + cryptx_register_action_links();
171 +
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 +});
192 +
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();
212 +
213 + return;
214 + }
215 +
216 + $batch_size = 100;
217 + $offset = 0;
218 +
219 + do {
220 + $site_ids = get_sites([
221 + 'fields' => 'ids',
222 + 'number' => $batch_size,
223 + 'offset' => $offset,
224 + 'orderby' => 'id',
225 + 'update_site_meta_cache' => false,
226 + ]);
227 +
228 + foreach ($site_ids as $site_id) {
229 + switch_to_blog($site_id);
230 +
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 + }
243 +
244 + $offset += $batch_size;
245 + } while (count($site_ids) === $batch_size);
246 +}
247 +
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;
256 +
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_') . '%';
265 +
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 +}
271 +
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 + }
282 +
283 + CryptX\CryptX::get_instance()->installCryptX();
284 +}
285 +
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 ($network_wide) {
296 + cryptx_for_each_site('cryptx_install_site');
297 + } else {
298 + cryptx_install_site();
299 + }
300 +
301 + flush_rewrite_rules();
302 +});
303 +
304 +// Deactivation. Same reason, other direction: the transients of every site but
305 +// the current one used to survive a network deactivation.
306 +register_deactivation_hook(__FILE__, function ($network_wide = false) {
307 + if ($network_wide) {
308 + cryptx_for_each_site('cryptx_delete_transients');
309 + } else {
310 + cryptx_delete_transients();
311 + }
312 +});
313 +
314 +// A site created while the plugin is network-active gets the same treatment as
315 +// one that existed at activation time. Without this the new site works -- the
316 +// defaults see to that -- but nothing is ever written until someone saves, and
317 +// the behaviour differs from every other site in the network for no reason
318 +// anybody could see.
319 +add_action('wp_initialize_site', function ($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 + $network_active = get_site_option('active_sitewide_plugins', []);
325 +
326 + if (!isset($network_active[CRYPTX_PLUGIN_BASENAME])) {
327 + return;
328 + }
329 +
330 + $site_id = is_object($site) ? (int) $site->blog_id : (int) $site;
331 +
332 + switch_to_blog($site_id);
333 + cryptx_install_site();
334 + restore_current_blog();
335 +}, 20);
336 +
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);
351 +
352 + return $links;
353 + });
354 +}
355 +
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 ?? []);
371 +
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]';
379 +
380 + return do_shortcode($shortcode);
381 + }
382 +}
383 +
384 +/**
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 $args = []): string
392 + {
393 + _doing_it_wrong(
394 + 'encryptx',
395 + esc_html__('This function is deprecated. Use cryptx_encrypt() instead.', 'cryptx'),
396 + '4.0.5'
397 + );
398 +
399 + return cryptx_encrypt($content, $args);
400 + }
401 +}