cryptx / cryptx.php

cryptx.php in CryptX 2.4.1, at cryptx.php

523 lines 17.1 KB

Raw Download Zip

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: 2.4.1
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(&$this, 'header')
89	);
90	}
91
92	add_action('admin_menu',
93	array(&$this, 'cryptx_meta_box')
94	);
95
96	add_action('wp_insert_post',
97	array(&$this, 'cryptx_insert_post')
98	);
99	add_action('wp_update_post',
100	array(&$this, 'cryptx_insert_post')
101	);
102
103	} // End function
104
105	// -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
106
107	function filter($apply)
108	{
109	global $cryptX_var;
110
111	if (@$cryptX_var[autolink]) {
112	add_filter($apply,
113	array(&$this, 'autolink'),
114	5);
115	}
116
117	add_filter($apply, array($this, 'encryptx'), 11);
118	add_filter($apply, array($this, 'linktext'), 12);
119	}
120
121	// -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
122
123
124	function linktext($content)
125	{
126	global $post;
127	$cryptxoff = false;
128	$cryptxoffmeta = get_post_meta($post->ID,'cryptxoff',true);
129	if ($cryptxoffmeta == "true") {
130	$cryptxoff = true;
131	}
132	echo "<!-- linktext: $cryptxoff / $cryptxoffmeta -->";
133	if ($cryptxoff == false) {
134	$content = preg_replace_callback("/([_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)(\.[a-zA-Z]{2,}))/i", array(get_class($this), '_Linktext'), $content );
135	}
136	return $content;
137	}
138
139	function _linktext($Match)
140	{
141	global $cryptX_var;
142	switch ($cryptX_var[opt_linktext]) {
143
144	case 1: // alternative text for mail link
145	$linktext = $cryptX_var[alt_linktext];
146	break;
147
148	case 2: // alternative image for mail link
149	$linktext = "<img src=\"" . $cryptX_var[alt_linkimage] . "\" class=\"cryptxImage\" alt=\"" . $cryptX_var[alt_linkimage_title] . "\" title=\"" . $cryptX_var[alt_linkimage_title] . "\">";
150	break;
151
152	case 3: // uploaded image for mail link
153	$imgurl = "/" . PLUGINDIR . "/" . dirname(plugin_basename (__FILE__)) . "/images/" . $cryptX_var[alt_uploadedimage];
154	$linktext = "<img src=\"" . $imgurl . "\" class=\"cryptxImage\" alt=\"" . $cryptX_var[http_linkimage_title] . "\" title=\"" . $cryptX_var[http_linkimage_title] . "\">";
155	break;
156
157	case 4: // text scrambled by antispambot
158	$linktext = antispambot($Match[1]);
159	break;
160
161	default:
162	$linktext = str_replace( "@", $cryptX_var[at], $Match[1]);
163	$linktext = str_replace( ".", $cryptX_var[dot], $linktext);
164
165	}
166	return $linktext;
167	}
168
169	// -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
170
171	function _dirImages()
172	{
173	$dir = $_SERVER["DOCUMENT_ROOT"].'/'.PLUGINDIR.'/'.dirname(plugin_basename (__FILE__)).'/images';
174	echo "<!-- cryptximgdir: $dir -->";
175	$fh = opendir($dir); //Verzeichnis
176	$verzeichnisinhalt = array();
177	while (true == ($file = readdir($fh)))
178	{
179	echo "<!-- BILD: $file -->";
180	if ((substr(strtolower($file), -3)=="jpg") or (substr(strtolower($file), -3)=="gif"))
181	{
182	$verzeichnisinhalt[] = $file;
183	}
184	}
185	return $verzeichnisinhalt;
186	}
187
188	// -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
189
190	function encryptx($content)
191	{
192	global $post;
193	$cryptxoff = false;
194	$cryptxoffmeta = get_post_meta($post->ID,'cryptxoff',true);
195	if ($cryptxoffmeta == "true") {
196	$cryptxoff = true;
197	}
198	echo "<!-- encryptx: $cryptxoff / $cryptxoffmeta -->";
199	if ($cryptxoff == false) {
200	$content = preg_replace_callback('/<a (.?)(href=("\|\')mailto:(.?)("\|\')(.?)\|)>(.?)<\/a>/i', array(get_class($this), 'mailtocrypt'), $content );
201	}
202	return $content;
203	}
204
205	function mailtocrypt($Match)
206	{
207	global $cryptX_var;
208	$return = $Match[0];
209	$mailto = "mailto:" . $Match[4];
210	if (@$cryptX_var[java]) {
211	$crypt = '';
212	$ascii = 0;
213	for ($i = 0; $i < strlen( $Match[4] ); $i++) {
214	$ascii = ord ( substr ( $Match[4], $i ) );
215	if (8364 <= $char) {
216	$ascii = 128;
217	}
218	$crypt .= chr($ascii + 1);
219	}
220	$javascript="javascript:DeCryptX('" . $crypt . "')";
221	$return = str_replace( "mailto:".$Match[4], $javascript, $return);
222	} else {
223	$return = str_replace( $mailto, antispambot($mailto), $return);
224	}
225	return $return;
226	}
227
228
229	// -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
230
231	function autolink($content) {
232
233	$src[]="/([\s])([_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)(\.[a-zA-Z]{2,}))/si";
234	$src[]="/(>)([_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)(\.[a-zA-Z]{2,}))(<)/si";
235	$src[]="/^([_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)(\.[a-zA-Z]{2,}))/si";
236	$src[]="/(<a[^>]>)<a[^>]>/";
237	$src[]="/(<\/A>)<\/A>/i";
238
239	$tar[]="\\1<a href=\"mailto:\\2\">\\2</a>";
240	$tar[]="\\1<a href=\"mailto:\\2\">\\2</a>\\6";
241	$tar[]="<a href=\"mailto:\\0\">\\0</a>";
242	$tar[]="\\1";
243	$tar[]="\\1";
244
245	$content = preg_replace($src,$tar,$content);
246
247	return $content;
248	}
249
250	// -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
251
252
253	function install() {
254	add_option(
255	'cryptX',
256	array(
257	'at' => ' [at] ',
258	'dot' => ' [dot] ',
259	'theContent' => 1,
260	'theExcerpt' => 0,
261	'commentText' => 1,
262	'java' => 1,
263	'opt_linktext' => 0,
264	)
265	);
266	}
267
268	// -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
269
270	/**
271	* Attach the menu page to the `Options` tab
272	*/
273	function header()
274	{
275	$cryptX_script.= "<script type=\"text/javascript\" src=\"" . get_option('siteurl') . '/' . PLUGINDIR . '/' . dirname(plugin_basename (__FILE__)) . "/js/cryptx.js\"></script>\n";
276	print($cryptX_script);
277	}
278
279	// -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
280
281
282	function cryptx_meta() {
283	global $post;
284	$cryptxoff = false;
285	$cryptxoffmeta = get_post_meta($post->ID,'cryptxoff',true);
286	if ($cryptxoffmeta == "true") {
287	$cryptxoff = true;
288	}
289	?>
290	<input type="checkbox" name="cryptxoff" <?php if ($cryptxoff) { echo 'checked="checked"'; } ?>/> Disable CryptX
291	<?php
292	}
293
294	function cryptx_option() {
295	global $post;
296	$cryptxoff = false;
297	$cryptxoffmeta = get_post_meta($post->ID,'cryptxoff',true);
298	if ($cryptxoffmeta == "true") {
299	$cryptxoff = true;
300	}
301	if ( current_user_can('edit_posts') ) { ?>
302	<fieldset id="cryptxoption" class="dbx-box">
303	<h3 class="dbx-handle">CryptX</h3>
304	<div class="dbx-content">
305	<input type="checkbox" name="cryptxon" <?php if ($cryptxoff) { echo 'checked="checked"'; } ?>/> CryptX disabled?
306	</div>
307	</fieldset>
308	<?php
309	}
310	}
311
312	function cryptx_meta_box() {
313	// Check whether the 2.5 function add_meta_box exists, and if it doesn't use 2.3 functions.
314	if ( function_exists('add_meta_box') ) {
315	add_meta_box('cryptx','CryptX', array(&$this, 'cryptx_meta'),'post');
316	add_meta_box('cryptx','CryptX', array(&$this, 'cryptx_meta'),'page');
317	} else {
318	add_action('dbx_post_sidebar', array(&$this, 'cryptx_option'));
319	add_action('dbx_page_sidebar', array(&$this, 'cryptx_option'));
320	}
321	}
322
323	//add_action('admin_menu', 'cryptx_meta_box');
324
325	function cryptx_insert_post($pID) {
326	if (isset($_POST['cryptxoff'])) {
327	add_post_meta($pID,'cryptxoff',"true", true) or update_post_meta($pID, 'cryptxoff', "true");
328	} else {
329	add_post_meta($pID,'cryptxoff',"false", true) or update_post_meta($pID, 'cryptxoff', "false");
330	}
331	}
332	//add_action('wp_insert_post', array(&$this, 'cryptx_insert_post'));
333
334
335
336
337	/**
338	* Attach the menu page to the `Options` tab
339	*/
340	function menu() {
341	add_options_page(
342	'CryptX',
343	(version_compare($GLOBALS['wp_version'], '2.6.999', '>') ? '<img src="' .@plugins_url('cryptx/icon.png'). '" width="10" height="10" alt="CryptX Icon" />' : ''). 'CryptX',
344	9,
345	__FILE__,
346	array(
347	$this,
348	'_submenu'
349	)
350	);
351	}
352
353	/**
354	* Handles and renders the menu page
355	*/
356	function _submenu() {
357	global $cryptX_var;
358
359	if (isset($_POST) && !empty($_POST)) {
360	if (function_exists('current_user_can') === true && (current_user_can('manage_options') === false \|\| current_user_can('edit_plugins') === false)) {
361	wp_die("You don't have permission to access!");
362	}
363	check_admin_referer('cryptX');
364	update_option( 'cryptX', $_POST['cryptX_var']);
365	$cryptX_var = (array) get_option('cryptX'); // reread Options
366	?>
367	<div id="message" class="updated fade">
368	<p><strong><?php _e('Settings saved.') ?></strong></p>
369	</div>
370	<?php } ?>
371
372	<div class="wrap">
373	<?php if (version_compare($GLOBALS['wp_version'], '2.6.999', '>')) { ?>
374	<div class="icon32" style="background: url(<?php echo @plugins_url('cryptx/icon32.png') ?>) no-repeat"><br /></div>
375	<?php } ?>
376	<h2>CryptX</h2>
377
378	<form method="post" action="">
379
380	<?php wp_nonce_field('cryptX') ?>
381
382	<div id="poststuff" class="ui-sortable">
383	<div id="wp_seo_about_wpseo" class="postbox">
384
385	<h3><?php _e("Presentation",'cryptx'); ?></h3>
386
387	<div class="inside">
388	<table class="form-table">
389	<tr valign="top">
390	<td><input name="cryptX_var[opt_linktext]" type="radio" id="opt_linktext" value="0" <?php echo ($cryptX_var[opt_linktext] == 0) ? 'checked="checked"' : ''; ?> /></td>
391	<th scope="row"><label for="cryptX_var[at]"><?php _e("Replacement for '@'",'cryptx'); ?></label></th>
392	<td><input name="cryptX_var[at]" value="<?php echo $cryptX_var[at]; ?>" type="text" class="regular-text" /></td>
393	</tr>
394	<tr valign="top">
395	<td> </td>
396	<th scope="row"><label for="cryptX_var[dot]"><?php _e("Replacement for '.'",'cryptx'); ?></label></th>
397	<td><input name="cryptX_var[dot]" value="<?php echo $cryptX_var[dot]; ?>" type="text" class="regular-text" /></td>
398	</tr>
399	<tr valign="top">
400	<td scope="row"><input type="radio" name="cryptX_var[opt_linktext]" id="opt_linktext2" value="1" <?php echo ($cryptX_var[opt_linktext] == 1) ? 'checked="checked"' : ''; ?>/></td>
401	<th><label for="cryptX_var[alt_linktext]"><?php _e("Text for link",'cryptx'); ?></label></th>
402	<td><input name="cryptX_var[alt_linktext]" value="<?php echo $cryptX_var[alt_linktext]; ?>" type="text" class="regular-text" /></td>
403	</tr>
404	<tr valign="top">
405	<td scope="row"><input type="radio" name="cryptX_var[opt_linktext]" id="opt_linktext3" value="2" <?php echo ($cryptX_var[opt_linktext] == 2) ? 'checked="checked"' : ''; ?>/></td>
406	<th><label for="cryptX_var[alt_linkimage]"><?php _e("Image-URL",'cryptx'); ?></label></th>
407	<td><input name="cryptX_var[alt_linkimage]" value="<?php echo $cryptX_var[alt_linkimage]; ?>" type="text" class="regular-text" /></td>
408	</tr>
409	<tr valign="top">
410	<td scope="row"> </td>
411	<th><label for="cryptX_var[http_linkimage_title]"><?php _e("Title-Tag for the Image",'cryptx'); ?></label></th>
412	<td><input name="cryptX_var[http_linkimage_title]" value="<?php echo $cryptX_var[http_linkimage_title]; ?>" type="text" class="regular-text" /></td>
413	</tr>
414	<tr valign="top">
415	<td scope="row"><input type="radio" name="cryptX_var[opt_linktext]" id="opt_linktext4" value="3" <?php echo ($cryptX_var[opt_linktext] == 3) ? 'checked="checked"' : ''; ?>/></td>
416	<th><label for="cryptX_var[alt_uploadedimage]"><?php _e("Select image from folder",'cryptx'); ?></label></th>
417	<td><select name="cryptX_var[alt_uploadedimage]" onchange="cryptX_bild_wechsel(this)">
418	<?php foreach($this->_dirImages() as $image) {
419	$FirstIMG = (!isset($FirstIMG))? plugins_url('cryptx/images/').$image : ($cryptX_var[alt_uploadedimage] == plugins_url('cryptx/images/').$image) ? plugins_url('cryptx/images/').$image : $FirstIMG;
420	?>
421	<option value="<?php echo plugins_url('cryptx/images/').$image; ?>" <?php echo ($cryptX_var[alt_uploadedimage] == plugins_url('cryptx/images/').$image) ? 'selected' : ''; ?> ><?php echo $image; ?></option>
422	<?php } ?>
423	</select>  <img src="<?php echo $FirstIMG; ?>" id="cryptXmailTo"></td>
424	</tr>
425	<tr valign="top">
426	<td> </td>
427	<th><label for="cryptX_var[alt_linkimage_title]"><?php _e("Title-Tag for the Image",'cryptx'); ?></label></th>
428	<td><input name="cryptX_var[alt_linkimage_title]" value="<?php echo $cryptX_var[alt_linkimage_title]; ?>" type="text" class="regular-text" />
429	<span class="setting-description"><?php _e("Upload your favorite email-image to ../plugins/cryptx/images. Only .jpg and .gif Supported!",'cryptx'); ?></span></td>
430	</tr>
431	<tr valign="top">
432	<td scope="row"><input type="radio" name="cryptX_var[opt_linktext]" id="opt_linktext" value="4" <?php echo ($cryptX_var[opt_linktext] == 4) ? 'checked="checked"' : ''; ?>/></td>
433	<th colspan="2"><?php _e("Text scrambled by AntiSpamBot (<small>Try it and look at your site and check the html source!</small>)",'cryptx'); ?></th>
434	</tr>
435	</table>
436	</div>
437	</div>
438
439	<div id="wp_seo_about_wpseo" class="postbox">
440
441	<h3><?php _e("General",'cryptx'); ?></h3>
442
443	<div class="inside">
444	<table class="form-table">
445	<tr valign="top">
446	<th scope="row"><?php _e("Apply CryptX to...",'cryptx'); ?></th>
447	<td><input name="cryptX_var[theContent]" <?php echo ($cryptX_var[theContent]) ? 'checked="checked"' : ''; ?> type="checkbox" />  <?php _e("Content",'cryptx'); ?><br/>
448	<input name="cryptX_var[theExcerpt]" <?php echo ($cryptX_var[theExcerpt]) ? 'checked="checked"' : ''; ?> type="checkbox" />  <?php _e("Excerpt",'cryptx'); ?><br/>
449	<input name="cryptX_var[commentText]" <?php echo ($cryptX_var[commentText]) ? 'checked="checked"' : ''; ?> type="checkbox" />  <?php _e("Comments",'cryptx'); ?></td>
450	</tr>
451	<tr valign="top">
452	<th scope="row"><?php _e("Type of decryption",'cryptx'); ?></th>
453	<td><input name="cryptX_var[java]" <?php echo ($cryptX_var[java]) ? 'checked="checked"' : ''; ?> type="radio" value="1" />  <?php _e("Use javascript to hide the Email-Link.",'cryptx'); ?><br/>
454	<input name="cryptX_var[java]" <?php echo (!$cryptX_var[java]) ? 'checked="checked"' : ''; ?> type="radio" value="0" />  <?php _e("Use Unicode to hide the Email-Link.",'cryptx'); ?></td>
455	</tr>
456	<tr valign="top">
457	<th scope="row" colspan="2"><input name="cryptX_var[autolink]" <?php echo ($cryptX_var[autolink]) ? 'checked="checked"' : ''; ?> type="checkbox" />  <?php _e("Add mailto to all unlinked email addresses",'cryptx'); ?></th>
458	</tr>
459	</table>
460
461	</div>
462	</div>
463	<p><input type="submit" name="cryptX" class="button-primary" value="<?php _e('Save Changes') ?>" /></p>
464	</div>
465
466	</form>
467
468	<script type="text/javascript">
469	<!--
470	function cryptX_bild_wechsel(select){
471	document.getElementById("cryptXmailTo").src = select.options[select.options.selectedIndex].value;
472	return true;
473	} //-->
474	</script>
475
476	</div>
477	<?php
478	}
479
480	// -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
481
482
483	//--end-of-class
484	}
485
486	}
487
488	/////////////////////////////////////////////////////////////////////////////
489
490	/**
491	* Initiating the plugin...
492	* @see cryptX
493	*/
494	new cryptX;
495
496	/**
497	* Create Template functions...
498	* $content = string to convert
499	* $text = string to replace linktext
500	* $css = assign a css class to the link
501	* $echo = 0: keep result in a variable, 1: show result
502	*/
503	function cryptx( $content, $text="", $css="", $echo=1 )
504	{
505	global $cryptX_var;
506
507	$cryptX = new cryptX;
508
509	$content = $cryptX->autolink( $content );
510
511	$content = $cryptX->encryptx( $content );
512
513	if("" != $text) {
514	$content = preg_replace( "/(<a[^>]>)(.)(<\/a>)/i", '$1'.$text.'$3', $content );
515	}
516	if("" != $css) {
517	$content = preg_replace( "/(<a[^>]*)(>)/i", '$1 class="'.$css.'"$2', $content );
518	}
519	if(1 == $echo) echo $content;
520
521	return $content;
522	}
523	?>