| 1 | <?php if (!defined('PmWiki')) exit();\r |
| 2 | /*\r |
| 3 | * Copyright *\r |
| 4 | Copyright 2004, by Steven Leite (steven_leite@kitimat.net).\r |
| 5 | Changes 2004, by Karl Loncarek (Klonk)\r |
| 6 | \r |
| 7 | * License *\r |
| 8 | Same as PmWiki (GNU GPL)\r |
| 9 | \r |
| 10 | * Special Thanks *\r |
| 11 | Thanks to Pm (Patrick Michaud, www.pmichaud.com), for creating\r |
| 12 | PmWiki, and for sharing his knowledge and insightfulness with the\r |
| 13 | PmWiki community.\r |
| 14 | \r |
| 15 | * Description *\r |
| 16 | eProtect is an email obfuscation add-on for PmWiki. It intercepts\r |
| 17 | pages before they are saved, and rewrites email addresses in a\r |
| 18 | protected format.\r |
| 19 | \r |
| 20 | Example: "[[mailto:username@domain.net]]" is automatically replaced with:\r |
| 21 | "[[hidden-email:hfre@qbznva.arg]]".\r |
| 22 | \r |
| 23 | When a WikiPage is requested the [[hidden-email:]] directive is\r |
| 24 | detected, and then translated into a small javascript. Once the page\r |
| 25 | is rendered to the in website, it's at that point which the javascript\r |
| 26 | decodes the protected address. Viewing the source-code of the page\r |
| 27 | won't reveal the true email address, nor will clicking on the link to\r |
| 28 | "Edit This Page".\r |
| 29 | \r |
| 30 | Also you could give some text that is displayed instead the email address.\r |
| 31 | \r |
| 32 | Example: "[[mailto:username@domain.net | Special Guy]]" is automatically\r |
| 33 | replaced with: "[[hidden-email:hfre@qbznva.arg | Special Guy]]". On the\r |
| 34 | page you only can see "Special Guy" as urllink.\r |
| 35 | \r |
| 36 | But beware: giving the email address as alternative text renders this script\r |
| 37 | useless, because this alternative text is NOT encoded, and thus is also visible\r |
| 38 | in HTML source code!\r |
| 39 | \r |
| 40 | \r |
| 41 | * Installation Instructions *\r |
| 42 | 1. Copy this script (e-protect.php) to local/scripts/\r |
| 43 | 2. In your config.php file, add the following line:\r |
| 44 | include_once('scripts/e-protect.php');\r |
| 45 | 3. That's it!\r |
| 46 | \r |
| 47 | * History *\r |
| 48 | Apr 7 2005 - * Replaced str_rot13 with strtr to make it work with PHP <4.2.0,\r |
| 49 | and to have the @ recoded.\r |
| 50 | Feb 18 2005 - * Added some comment signs to get valid XHTML when validating (Klonk)\r |
| 51 | Feb 15 2005 - * Modified encoding and added additional markup for handling (Klonk)\r |
| 52 | [[text -> mailto:...]]\r |
| 53 | Jan 7 2005 - * Moved decoding script to Header, due to problem, when SideBar and Main Text\r |
| 54 | contains addresses to decode (Klonk)\r |
| 55 | \r |
| 56 | Nov 17 2004 - * Calling the decoding function as Custom Markup for PmWiki2\r |
| 57 | (by Klonk) * made decoding of [[hidden-email:...]] working\r |
| 58 | BONUS: [[hidden-email:... |DisplayedText]] works also now\r |
| 59 | * added class='urllink' to decoded output for same CSS formating\r |
| 60 | as for other links in PmWiki2\r |
| 61 | * inserted own function call in array $EditFunctions before 'ReplaceOnSave'\r |
| 62 | \r |
| 63 | May 11, 2004 - Working Beta. Still a few improvements to be made, but\r |
| 64 | the script is ready for public testing. Please feel\r |
| 65 | free to email me your comments/suggestions. Thanks!\r |
| 66 | May 8, 2004 - Alpha release. Not released to public.\r |
| 67 | \r |
| 68 | * Configuration *\r |
| 69 | There aren't (yet) any configuration variables for this script. */\r |
| 70 | \r |
| 71 | //----------------------------------------------------------------------\r |
| 72 | \r |
| 73 | ## [[hidden-email:target]]\r |
| 74 | Markup('hidden-email','<links',\r |
| 75 | "/\\[\\[hidden-email:([^\\s$UrlExcludeChars]*)\\s*\\]\\]($SuffixPattern)/e",\r |
| 76 | "eProtectDecode('$1','')");\r |
| 77 | \r |
| 78 | ## [[hidden-email:target | text]]\r |
| 79 | Markup('hidden-email|','<hidden-email',\r |
| 80 | "/\\[\\[hidden-email:([^\\s$UrlExcludeChars]*)\\s*\\|\\s*(.*?)\\s*\\]\\]($SuffixPattern)/e",\r |
| 81 | "eProtectDecode('$1','$2')");\r |
| 82 | \r |
| 83 | ## [[ text -> hidden-email:target]]\r |
| 84 | Markup('-hidden-email','<hidden-email',\r |
| 85 | "/\\[\\[(.*?)\\s*-+>\\s*hidden-email:([^\\s$UrlExcludeChars]*)\\s*\\]\\]($SuffixPattern)/e",\r |
| 86 | "eProtectDecode('$2','$1')");\r |
| 87 | \r |
| 88 | ## Add own function in array $EditFunctions before ReplaceOnSave, so it is called, when saving is performed.\r |
| 89 | array_splice ($EditFunctions, array_search('ReplaceOnSave',$EditFunctions), 1,\r |
| 90 | array('eProtectEncode','ReplaceOnSave'));\r |
| 91 | \r |
| 92 | ## Add decoding script to Header\r |
| 93 | $HTMLHeaderFmt['eProtect']= "\n<script type='text/JavaScript'>\n<!--\nNix={map:null,convert:function(a){Nix.init();var s='';for(i=0;i<a.length;i++){var b=a.charAt(i);s+=((b>='A'&&b<='Z')||(b>='a'&&b<='z')?Nix.map[b]:b);}return s;},init:function(){if(Nix.map!=null)return;var map=new Array();var s='abcdefghijklmnopqrstuvwxyz';for(i=0;i<s.length;i++)map[s.charAt(i)]=s.charAt((i+13)%26);for(i=0;i<s.length;i++)map[s.charAt(i).toUpperCase()]=s.charAt((i+13)%26).toUpperCase();Nix.map=map;},decode:function(a){document.write(Nix.convert(a));}}\n//-->\n</script>\n";\r |
| 94 | \r |
| 95 | //----------------------------------------------------------------------\r |
| 96 | function eProtectStrRecode ($s) {\r |
| 97 | /* str_rot13, extended to recode digits and @#. */\r |
| 98 | //----------------------------------------------------------------------\r |
| 99 | return strtr ($s,\r |
| 100 | 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ',\r |
| 101 | 'nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM');\r |
| 102 | }\r |
| 103 | \r |
| 104 | //----------------------------------------------------------------------\r |
| 105 | function eProtectDecode ($CompressedEmailAddress,$AlternateText) {\r |
| 106 | //----------------------------------------------------------------------\r |
| 107 | $email = $CompressedEmailAddress;\r |
| 108 | $html = "\n<!--eProtect-->\n";\r |
| 109 | if ($AlternateText=='')\r |
| 110 | $html .= "<script type='text/JavaScript'>\n<!--\nNix.decode" .\r |
| 111 | "(\"<n pynff='heyyvax' uers='znvygb:$email'>$email</n>\");" . "\n//-->\n</script>";\r |
| 112 | else\r |
| 113 | $html .= "<script type='text/JavaScript'>\n<!--\nNix.decode" .\r |
| 114 | "(\"<n pynff='heyyvax' uers='znvygb:$email'>\");" . "\n//-->\n</script>" . $AlternateText . "<script\r |
| 115 | type='text/JavaScript'><!--\nNix.decode" .\r |
| 116 | "(\"</n>\");" . "\n//-->\n</script>";\r |
| 117 | $html .= "\n<!--/eProtect-->\n";\r |
| 118 | return Keep($html);\r |
| 119 | }\r |
| 120 | \r |
| 121 | //----------------------------------------------------------------------\r |
| 122 | function eProtectEncode ($pagename,&$page,&$new) {\r |
| 123 | //----------------------------------------------------------------------\r |
| 124 | global $KeepToken, $KPV, $UrlExcludeChars;\r |
| 125 | if (!@$_POST['post']) return; // only Encode, when posting\r |
| 126 | $text = $new['text'];\r |
| 127 | $text = preg_replace_callback("/\\[\\=(.*?)\\=\\]/s", create_function('$str', 'return Keep($str[0]);'), $text); // extract the [= .. =] and temporarily store in $KPV[]\r |
| 128 | # $text = preg_replace_callback("/\\[\\[mailto:([^\\s$UrlExcludeChars]*)/", create_function('$m','return "[[hidden-email:".trim(eProtectStrRecode($m[1]));'), $text);\r |
| 129 | $text = preg_replace_callback("/\\[\\[(.*?)mailto:([^\\s$UrlExcludeChars]*)(.*?)\\]\\]/", create_function('$m','return "[[".$m[1]."hidden-email:".trim(eProtectStrRecode($m[2])).$m[3]."]]";'), $text);\r |
| 130 | $text = preg_replace("/$KeepToken(\\d+)$KeepToken/e",'$KPV[$1]',$text); // put the [= .. =] back in to the text\r |
| 131 | $new['text'] = $text;\r |
| 132 | }\r |
| 133 | // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8: |
| 134 | ?> |