| 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]) { |
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$this->_filter('the_excerpt'); |
| 57 |
} |
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if (@$cryptX_var[commentText]) { |
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$this->_filter('comment_text'); |
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} |
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|
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// attach to admin menu |
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// |
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if (is_admin()) { |
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add_action('admin_menu', |
| 66 |
array(&$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(&$this, '_install') |
| 81 |
); |
| 82 |
|
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// attach javascript to Header |
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// |
| 85 |
if (@$cryptX_var[java]) { |
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add_action( |
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'wp_head', |
| 88 |
array(&$this, '_header') |
| 89 |
); |
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} |
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|
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} // End function |
| 93 |
|
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// -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- |
| 95 |
|
| 96 |
function _filter($apply) |
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{ |
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global $cryptX_var; |
| 99 |
|
| 100 |
if (@$cryptX_var[autolink]) { |
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add_filter($apply, |
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array(&$this, '_autolink')); |
| 103 |
} |
| 104 |
if (@$cryptX_var[java]) { |
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add_filter($apply, |
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array(&$this, '_encrypt')); |
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} else { |
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add_filter($apply, |
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array(&$this, '_unicode')); |
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} |
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|
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} |
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|
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// -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- |
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|
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function _linktext($txt) |
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{ |
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global $cryptX_var; |
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|
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switch ($cryptX_var[opt_linktext]) { |
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|
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case 1: // alternative text for mail link |
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$linktext = $cryptX_var[alt_linktext]; |
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break; |
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|
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case 2: // alternative image for mail link |
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$linktext = "<img src=\"" . $cryptX_var[alt_linkimage] . "\" class=\"cryptxImage\" alt=\"" . $cryptX_var[alt_linkimage_title] . "\" title=\"" . $cryptX_var[alt_linkimage_title] . "\">"; |
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break; |
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|
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case 3: // uploaded image for mail link |
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$imgurl = "/" . PLUGINDIR . "/" . dirname(plugin_basename (__FILE__)) . "/images/" . $cryptX_var[alt_uploadedimage]; |
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$linktext = "<img src=\"" . $imgurl . "\" class=\"cryptxImage\" alt=\"" . $cryptX_var[http_linkimage_title] . "\" title=\"" . $cryptX_var[http_linkimage_title] . "\">"; |
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break; |
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|
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case 4: // text scrambled by antispambot |
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$linktext = antispambot($txt); |
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break; |
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|
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default: |
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$linktext = str_replace( "@", $cryptX_var[at], $txt); |
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$linktext = str_replace( ".", $cryptX_var[dot], $linktext); |
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|
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} |
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|
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return $linktext; |
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} |
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|
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// -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- |
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|
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function _dirImages() |
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{ |
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$dir = $_SERVER["DOCUMENT_ROOT"].'/'.PLUGINDIR.'/'.dirname(plugin_basename (__FILE__)).'/images'; |
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$fh = opendir($dir); //Verzeichnis |
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$verzeichnisinhalt = array(); |
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while (true == ($file = readdir($fh))) |
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{ |
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if ((substr(strtolower($file), -3)=="jpg") or (substr(strtolower($file), -3)=="gif")) //Abfrage nach g�ltigen Datenformat |
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{ |
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$verzeichnisinhalt[] = $file; |
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} |
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} |
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return $verzeichnisinhalt; |
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} |
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|
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// -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- |
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|
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function _encrypt($content) |
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{ |
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global $cryptX_var; |
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|
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preg_match_all('/<a[^>]*href=["|\'](.*)["|\'].*>(.*)<\/a>/iUs', $content, $links, PREG_SET_ORDER); |
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|
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foreach( $links as $link ) { |
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|
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if(preg_match('/mailto:(.*)/', $link[1], $mail)) { |
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$crypt = ''; |
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$ascii = 0; |
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for ($i = 0; $i < strlen( $mail[1] ); $i++) { |
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$ascii = ord ( substr ( $mail[1], $i ) ); |
| 180 |
if (8364 <= $char) { |
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$ascii = 128; |
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} |
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$crypt .= chr($ascii + 1); |
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} |
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$temp = str_replace( $link[1], "javascript:DeCryptX('" . $crypt . "')", $link[0]); |
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$temp = str_replace( $link[2], $this->_linktext($link[2]), $temp); |
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$content = str_replace( $link[0], $temp, $content); |
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} |
| 189 |
|
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} // foreach |
| 191 |
|
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|
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return $content; |
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} |
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|
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// -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- |
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|
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function _unicode($content) |
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{ |
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global $cryptX_var; |
| 201 |
|
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preg_match_all('/<a[^>]*href=["|\'](.*)["|\'].*>(.*)<\/a>/iUs', $content, $links, PREG_SET_ORDER); |
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|
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foreach( $links as $link ) { |
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|
| 206 |
if(preg_match('/mailto:(.*)/', $link[1], $mail)) { |
| 207 |
$mailto = "mailto:" . $mail[1]; |
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/* |
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$crypt = ''; |
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for ($i = 0; $i < strlen( $mailto ); $i++) { |
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$crypt .= "&#" . ord ( substr ( $mailto, $i ) ) . ";"; |
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} |
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$content = str_replace( $mailto, $crypt, $content); |
| 214 |
*/ |
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$content = str_replace( $mailto, antispambot($mailto), $content); |
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$content = str_replace( $link[2], $this->_linktext($link[2]), $content); |
| 217 |
} |
| 218 |
|
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} // foreach |
| 220 |
return $content; |
| 221 |
} |
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|
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// -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- |
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|
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function _autolink($content) { |
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|
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$src[]="/([\s])([_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*(\.[a-zA-Z]{2,}))/si"; |
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$src[]="/(>)([_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*(\.[a-zA-Z]{2,}))(<)/si"; |
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$src[]="/^([_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*(\.[a-zA-Z]{2,}))/si"; |
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$src[]="/(<a[^>]*>)<a[^>]*>/"; |
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$src[]="/(<\/A>)<\/A>/i"; |
| 232 |
|
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$tar[]="\\1<a href=\"mailto:\\2\">\\2</a>"; |
| 234 |
$tar[]="\\1<a href=\"mailto:\\2\">\\2</a>\\6"; |
| 235 |
$tar[]="<a href=\"mailto:\\0\">\\0</a>"; |
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$tar[]="\\1"; |
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$tar[]="\\1"; |
| 238 |
|
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$content = preg_replace($src,$tar,$content); |
| 240 |
|
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return $content; |
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} |
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|
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// -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- |
| 245 |
|
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|
| 247 |
function _install() { |
| 248 |
add_option( |
| 249 |
'cryptX', |
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array( |
| 251 |
'at' => ' [at] ', |
| 252 |
'dot' => ' [dot] ', |
| 253 |
'theContent' => 1, |
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'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"' : ''; ?> /> </td> |
| 345 |
<td nowrap><?php _e("Replacement for '@'",'cryptx'); ?> </td> |
| 346 |
<td ><input name="cryptX_var[at]" value="<?php echo $cryptX_var[at]; ?>" type="text" /></td> |
| 347 |
</tr> |
| 348 |
<tr> |
| 349 |
<td> </td> |
| 350 |
<td nowrap><?php _e("Replacement for '.'",'cryptx'); ?> </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'); ?> </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'); ?> </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> </td> |
| 365 |
<td nowrap><?php _e("Title-Tag for the Image",'cryptx'); ?> </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'); ?> </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> </td> |
| 379 |
<td nowrap><?php _e("Title-Tag for the Image",'cryptx'); ?> </td> |
| 380 |
<td><input name="cryptX_var[alt_linkimage_title]" value="<?php echo $cryptX_var[alt_linkimage_title]; ?>" type="text" /></td> |
| 381 |
</tr> |
| 382 |
<tr> |
| 383 |
<td> </td> |
| 384 |
<td nowrap colspan="2"><?php _e("Upload your favorite email-image to ../plugins/cryptx/images. Only .jpg and .gif Supported!",'cryptx'); ?></td> |
| 385 |
</tr> |
| 386 |
<tr> |
| 387 |
<td><input type="radio" name="cryptX_var[opt_linktext]" id="opt_linktext2" value="4" <?php echo ($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'); ?> </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 ($cryptX_var[theContent]) ? 'checked="checked"' : ''; ?> type="checkbox" /> </td> |
| 397 |
<td nowrap><?php _e("Apply CryptX to the Content",'cryptx'); ?></td> |
| 398 |
</tr> |
| 399 |
<tr> |
| 400 |
<td valign="top"><input name="cryptX_var[theExcerpt]" <?php echo ($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 »",'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 |
?> |
| 481 |
|
