function str_rot13 (str) { // http://kevin.vanzonneveld.net // + original by: Jonas Raoni Soares Silva (http://www.jsfromhell.com) // + improved by: Ates Goral (http://magnetiq.com) // + bugfixed by: Onno Marsman // + improved by: Rafa? Kukawski (http://blog.kukawski.pl) // * example 1: str_rot13('Kevin van Zonneveld'); // * returns 1: 'Xriva ina Mbaariryq' // * example 2: str_rot13('Xriva ina Mbaariryq'); // * returns 2: 'Kevin van Zonneveld' // * example 3: str_rot13(33); // * returns 3: '33' return (str + '').replace(/[a-z]/gi, function (s) { return String.fromCharCode(s.charCodeAt(0) + (s.toLowerCase() < 'n' ? 13 : -13)); }); } // Arrays for pluggable encryptors/decryptors var red_encryptors = new Array(); var red_decryptors = new Array(); // We probably just want the element where the text is and find it ourself. e.g. if // there is highlighted text use it, otherwise use the entire text. // So the third element may be useless. Fix also in view/tpl/jot.tpl before // adding to all the editor templates and enabling the feature // Should probably do some input sanitising and dealing with bbcode, hiding key text, and displaying // results in a lightbox and/or popup form are left as an exercise for the reader. function red_encrypt(alg, elem,text) { var enc_text = ''; var newdiv = ''; if(typeof tinyMCE !== "undefined") tinyMCE.triggerSave(false,true); var text = $(elem).val(); // key and hint need to be localised var passphrase = prompt(aStr['passphrase']); // let the user cancel this dialogue if (passphrase == null) return false; var enc_key = bin2hex(passphrase); // If you don't provide a key you get rot13, which doesn't need a key // but consequently isn't secure. if(! enc_key) alg = 'rot13'; if((alg == 'rot13') || (alg == 'triple-rot13')) newdiv = "[crypt alg='rot13']" + str_rot13(text) + '[/crypt]'; if(alg == 'aes256') { // This is the prompt we're going to use when the receiver tries to open it. // Maybe "Grandma's maiden name" or "our secret place" or something. var enc_hint = bin2hex(prompt(aStr['passhint'])); enc_text = CryptoJS.AES.encrypt(text,enc_key); encrypted = enc_text.toString(); newdiv = "[crypt alg='aes256' hint='" + enc_hint + "']" + encrypted + '[/crypt]'; } if(alg == 'rabbit') { // This is the prompt we're going to use when the receiver tries to open it. // Maybe "Grandma's maiden name" or "our secret place" or something. var enc_hint = bin2hex(prompt(aStr['passhint'])); enc_text = CryptoJS.Rabbit.encrypt(text,enc_key); encrypted = enc_text.toString(); newdiv = "[crypt alg='rabbit' hint='" + enc_hint + "']" + encrypted + '[/crypt]'; } if(alg == '3des') { // This is the prompt we're going to use when the receiver tries to open it. // Maybe "Grandma's maiden name" or "our secret place" or something. var enc_hint = bin2hex(prompt(aStr['passhint'])); enc_text = CryptoJS.TripleDES.encrypt(text,enc_key); encrypted = enc_text.toString(); newdiv = "[crypt alg='3des' hint='" + enc_hint + "']" + encrypted + '[/crypt]'; } if((red_encryptors.length) && (! newdiv.length)) { for(var i = 0; i < red_encryptors.length; i ++) { newdiv = red_encryptors[i](alg,text); if(newdiv.length) break; } } enc_key = ''; // alert(newdiv); // This might be a comment box on a page with a tinymce editor // so check if there is a tinymce editor but also check the display // property of our source element - because a tinymce instance // will have display "none". If a normal textarea such as in a comment // box has display "none" you wouldn't be able to type in it. if($(elem).css('display') == 'none' && typeof tinyMCE !== "undefined") { tinyMCE.activeEditor.setContent(newdiv); } else { $(elem).val(newdiv); } // textarea = document.getElementById(elem); // if (document.selection) { // textarea.focus(); // selected = document.selection.createRange(); // selected.text = newdiv; // } else if (textarea.selectionStart || textarea.selectionStart == "0") { // var start = textarea.selectionStart; // var end = textarea.selectionEnd; // textarea.value = textarea.value.substring(0, start) + newdiv + textarea.value.substring(end, textarea.value.length); // } } function hz_encrypt(alg, elem) { var enc_text = ''; var newdiv = ''; if(typeof tinyMCE !== "undefined") tinyMCE.triggerSave(false,true); var text = $(elem).val(); // key and hint need to be localised var passphrase = prompt(aStr['passphrase']); // let the user cancel this dialogue if (passphrase == null) return false; var enc_key = bin2hex(passphrase); // If you don't provide a key you get rot13, which doesn't need a key // but consequently isn't secure. if(! enc_key) alg = 'rot13'; if((alg == 'rot13') || (alg == 'triple-rot13')) newdiv = "[crypt alg='rot13']" + window.btoa(str_rot13(text)) + '[/crypt]'; if(alg == 'AES-256') { // This is the prompt we're going to use when the receiver tries to open it. // Maybe "Grandma's maiden name" or "our secret place" or something. var enc_hint = bin2hex(prompt(aStr['passhint'])); enc_text = sjcl.encrypt(enc_key, text, { ks: 256 }); encrypted = enc_text.toString(); newdiv = "[crypt alg='AES-256' hint='" + enc_hint + "']" + window.btoa(encrypted) + '[/crypt]'; } enc_key = ''; // This might be a comment box on a page with a tinymce editor // so check if there is a tinymce editor but also check the display // property of our source element - because a tinymce instance // will have display "none". If a normal textarea such as in a comment // box has display "none" you wouldn't be able to type in it. if($(elem).css('display') == 'none' && typeof tinyMCE !== "undefined") { tinyMCE.activeEditor.setContent(newdiv); } else { $(elem).val(newdiv); } } function red_decrypt(alg,hint,text,elem) { var dec_text = ''; if(alg == 'rot13' || alg == 'triple-rot13') dec_text = str_rot13(text); else { var enc_key = bin2hex(prompt((hint.length) ? hex2bin(hint) : aStr['passphrase'])); } if(alg == 'aes256') { dec_text = CryptoJS.AES.decrypt(text,enc_key); } if(alg == 'rabbit') { dec_text = CryptoJS.Rabbit.decrypt(text,enc_key); } if(alg == '3des') { dec_text = CryptoJS.TripleDES.decrypt(text,enc_key); } if((red_decryptors.length) && (! dec_text.length)) { for(var i = 0; i < red_decryptors.length; i ++) { dec_text = red_decryptors[i](alg,text,enc_key); if(dec_text.length) break; } } enc_key = ''; // Not sure whether to drop this back in the conversation display. // It probably needs a lightbox or popup window because any conversation // updates could // wipe out the text and make you re-enter the key if it was in the // conversation. For now we do that so you can read it. var dec_result = dec_text.toString(CryptoJS.enc.Utf8); delete dec_text; // incorrect decryptions *usually* but don't always have zero length // If the person typo'd let them try again without reloading the page // otherwise they'll have no "padlock" to click to try again. if(dec_result.length) { $(elem).html(b2h(dec_result)); dec_result = ''; } } function hz_decrypt(alg, hint, text, elem) { var dec_text = ''; text = window.atob(text); if(alg == 'rot13' || alg == 'triple-rot13') dec_text = str_rot13(text); else { var enc_key = bin2hex(prompt((hint.length) ? hex2bin(hint) : aStr['passphrase'])); } if(alg == 'AES-256') { dec_text = sjcl.decrypt(enc_key, text); } enc_key = ''; // Not sure whether to drop this back in the conversation display. // It probably needs a lightbox or popup window because any conversation // updates could // wipe out the text and make you re-enter the key if it was in the // conversation. For now we do that so you can read it. var dec_result = dec_text.toString(); delete dec_text; // incorrect decryptions *usually* but don't always have zero length // If the person typo'd let them try again without reloading the page // otherwise they'll have no "padlock" to click to try again. if(dec_result.length) { $(elem).html(b2h(dec_result)); dec_result = ''; } } function base64_encode (data) { // http://kevin.vanzonneveld.net // + original by: Tyler Akins (http://rumkin.com) // + improved by: Bayron Guevara // + improved by: Thunder.m // + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net) // + bugfixed by: Pellentesque Malesuada // + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net) // + improved by: Rafa? Kukawski (http://kukawski.pl) // * example 1: base64_encode('Kevin van Zonneveld'); // * returns 1: 'S2V2aW4gdmFuIFpvbm5ldmVsZA==' // mozilla has this native // - but breaks in 2.0.0.12! //if (typeof this.window['btoa'] === 'function') { // return btoa(data); //} var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; var o1, o2, o3, h1, h2, h3, h4, bits, i = 0, ac = 0, enc = "", tmp_arr = []; if (!data) { return data; } do { // pack three octets into four hexets o1 = data.charCodeAt(i++); o2 = data.charCodeAt(i++); o3 = data.charCodeAt(i++); bits = o1 << 16 | o2 << 8 | o3; h1 = bits >> 18 & 0x3f; h2 = bits >> 12 & 0x3f; h3 = bits >> 6 & 0x3f; h4 = bits & 0x3f; // use hexets to index into b64, and append result to encoded string tmp_arr[ac++] = b64.charAt(h1) + b64.charAt(h2) + b64.charAt(h3) + b64.charAt(h4); } while (i < data.length); enc = tmp_arr.join(''); var r = data.length % 3; return (r ? enc.slice(0, r - 3) : enc) + '==='.slice(r || 3); } function base64_decode (data) { // http://kevin.vanzonneveld.net // + original by: Tyler Akins (http://rumkin.com) // + improved by: Thunder.m // + input by: Aman Gupta // + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net) // + bugfixed by: Onno Marsman // + bugfixed by: Pellentesque Malesuada // + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net) // + input by: Brett Zamir (http://brett-zamir.me) // + bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net) // * example 1: base64_decode('S2V2aW4gdmFuIFpvbm5ldmVsZA=='); // * returns 1: 'Kevin van Zonneveld' // mozilla has this native // - but breaks in 2.0.0.12! //if (typeof this.window['atob'] === 'function') { // return atob(data); //} var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; var o1, o2, o3, h1, h2, h3, h4, bits, i = 0, ac = 0, dec = "", tmp_arr = []; if (!data) { return data; } data += ''; do { // unpack four hexets into three octets using index points in b64 h1 = b64.indexOf(data.charAt(i++)); h2 = b64.indexOf(data.charAt(i++)); h3 = b64.indexOf(data.charAt(i++)); h4 = b64.indexOf(data.charAt(i++)); bits = h1 << 18 | h2 << 12 | h3 << 6 | h4; o1 = bits >> 16 & 0xff; o2 = bits >> 8 & 0xff; o3 = bits & 0xff; if (h3 == 64) { tmp_arr[ac++] = String.fromCharCode(o1); } else if (h4 == 64) { tmp_arr[ac++] = String.fromCharCode(o1, o2); } else { tmp_arr[ac++] = String.fromCharCode(o1, o2, o3); } } while (i < data.length); dec = tmp_arr.join(''); return dec; }