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| <?php |
| require_once(realpath(dirname(__FILE__) . '/') . '/secret/wp-hashcash.lib'); |
| header("Pragma: no-cache"); |
| header("Expires: 0"); |
| header("Cache-Control: no-store, no-cache, must-revalidate"); |
| header("Cache-Control: post-check=0, pre-check=0", false); |
| $expired = array(); |
| $function_name = hashcash_random_string(rand(6,18)); |
| $expired [] = $function_name; |
| $js = "function $function_name (){"; |
| $type = rand(0, 3) * 0; |
| switch($type){ |
| /* Addition of n times of field value / n, + modulus: |
| Time guarantee: 100 iterations or less */ |
| case 0: |
| $eax = hashcash_random_string(rand(8,10), $expired); |
| $expired [] = $eax; |
| $val = hashcash_field_value(); |
| $inc = rand($val / 100, $val - 1); |
| $n = floor($val / $inc); |
| $r = $val % $inc; |
| $js .= "var $eax = $inc; "; |
| for($i = 0; $i < $n - 1; $i++){ |
| $js .= "$eax += $inc; "; |
| } |
| $js .= "$eax += $r; "; |
| $js .= "return $eax; "; |
| break; |
| /* Conversion from binary: |
| Time guarantee: log(n) iterations or less */ |
| case 1: |
| $eax = hashcash_random_string(rand(8,10), $expired); |
| $expired [] = $eax; |
| $ebx = hashcash_random_string(rand(8,10), $expired); |
| $expired [] = $ebx; |
| $ecx = hashcash_random_string(rand(8,10), $expired); |
| $expired [] = $ecx; |
| $val = hashcash_field_value(); |
| $binval = strrev(base_convert($val, 10, 2)); |
| $js .= "var $eax = \"$binval\"; "; |
| $js .= "var $ebx = 0; "; |
| $js .= "var $ecx = 0; "; |
| $js .= "while($ecx < $eax.length){ "; |
| $js .= "if($eax.charAt($ecx) == \"1\") { "; |
| $js .= "$ebx += Math.pow(2, $ecx); "; |
| $js .= "} "; |
| $js .= "$ecx++; "; |
| $js .= "} "; |
| $js .= "return $ebx; "; |
| break; |
| /* Multiplication of square roots: |
| Time guarantee: constant time */ |
| case 2: |
| $val = hashcash_field_value(); |
| $sqrt = floor(sqrt($val)); |
| $r = $val - ($sqrt * $sqrt); |
| $js .= "return $sqrt * $sqrt + $r; "; |
| break; |
| /* Sum of random numbers to the final value: |
| Time guarantee: log(n) expected value */ |
| case 3: |
| $val = hashcash_field_value(); |
| $js .= "return "; |
| $i = 0; |
| while($val > 0){ |
| if($i++ > 0) |
| $js .= "+"; |
| $temp = rand(1, $val); |
| $val -= $temp; |
| $js .= $temp; |
| } |
| $js .= ";"; |
| break; |
| } |
| $js .= "} $function_name ();"; |
| // pack bytes |
| function strToLongs($s) { |
| $l = array(); |
| // pad $s to some multiple of 4 |
| $s = preg_split('//', $s, -1, PREG_SPLIT_NO_EMPTY); |
| while(count($s) % 4 != 0){ |
| $s [] = ' '; |
| } |
| for ($i = 0; $i < ceil(count($s)/4); $i++) { |
| $l[$i] = ord($s[$i*4]) + (ord($s[$i*4+1]) << 8) + (ord($s[$i*4+2]) << 16) + (ord($s[$i*4+3]) << 24); |
| } |
| return $l; |
| } |
| // xor all the bytes with a random key |
| $key = rand(21474836, 2126008810); |
| $js = strToLongs($js); |
| for($i = 0; $i < count($js); $i++){ |
| $js[$i] = $js[$i] ^ $key; |
| } |
| // libs function encapsulation |
| $libs_name = hashcash_random_string(rand(6,18), $expired); |
| $expired [] = $libs_name; |
| $libs = "function $libs_name(){"; |
| // write bytes to javascript, xor with key |
| $data_name = hashcash_random_string(rand(6,18), $expired); |
| $expired [] = $data_name; |
| $libs .= "var $data_name = new Array(" . count($js) . "); "; |
| for($i = 0; $i < count($js); $i++){ |
| $libs .= $data_name . '[' . $i . '] = ' . $js[$i] . ' ^ ' . $key .'; '; |
| } |
| // convert bytes back to string |
| $libs .= " var a = new Array($data_name.length); "; |
| $libs .= "for (var i=0; i<" . $data_name . ".length; i++) { "; |
| $libs .= 'a[i] = String.fromCharCode(' . $data_name .'[i] & 0xFF, ' . $data_name . '[i]>>>8 & 0xFF, '; |
| $libs .= $data_name . '[i]>>>16 & 0xFF, ' . $data_name . '[i]>>>24 & 0xFF); } '; |
| $libs .= "return eval(a.join('')); "; |
| // call libs function |
| $libs .= "} $libs_name();"; |
| // return code |
| echo $libs; |
| ?> |
| /branches/livraison_aha/client/integrateur_wikini/bibliotheque/hashcash/secret/.htaccess |
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| /branches/livraison_aha/client/integrateur_wikini/bibliotheque/hashcash/secret/.htaccess |
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| /branches/livraison_aha/client/integrateur_wikini/bibliotheque/hashcash/secret/wp-hashcash.lib |
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| /branches/livraison_aha/client/integrateur_wikini/bibliotheque/hashcash/secret/wp-hashcash.lib |
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| /branches/livraison_aha/client/integrateur_wikini/bibliotheque/hashcash/secret/wp-hashcash.key |
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| /branches/livraison_aha/client/integrateur_wikini/bibliotheque/hashcash/secret/wp-hashcash.key |
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| /branches/livraison_aha/client/integrateur_wikini/bibliotheque/hashcash/wp-hashcash-js.php |
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| New file |
| 0,0 → 1,94 |
| <?php |
| ob_start("ob_gzhandler"); |
| require_once(realpath(dirname(__FILE__) . '/') . '/secret/wp-hashcash.lib'); |
| $field_id = hashcash_random_string(rand(6,18)); |
| $fn_enable_name = hashcash_random_string(rand(6,18)); |
| ?> |
| addLoadEvent(<?php echo $fn_enable_name; ?>); |
| function createHiddenField(){ |
| var inp = document.createElement('input'); |
| inp.setAttribute('type', 'hidden'); |
| inp.setAttribute('id', '<?php echo $field_id; ?>'); |
| inp.setAttribute('name', 'hashcash_value'); |
| inp.setAttribute('value', '-1'); |
| var e = document.getElementsByName('<?php echo HASHCASH_FORM_NAME; ?>'); |
| e[0].appendChild(inp); |
| } |
| function addVerbage(){ |
| var e = document.getElementById('<?php echo HASHCASH_FORM_ID; ?>'); |
| var p = document.createElement('p'); |
| p.innerHTML = '<?php echo str_replace("'", "\'", hashcash_verbage()); ?>'; |
| e.appendChild(p); |
| } |
| function <?php echo $fn_enable_name;?>(){ |
| createHiddenField(); |
| addVerbage(); |
| loadHashCashKey('<?php |
| echo $_GET['siteurl']; ?>/client/integrateur_wikini/bibliotheque/hashcash/wp-hashcash-getkey.php', '<?php echo $field_id; ?>'); |
| } |
| function loadHashCashKey(fragment_url, e_id) { |
| var xmlhttp=createXMLHttp(); |
| var element = document.getElementById(e_id); |
| xmlhttp.open("GET", fragment_url, true); |
| xmlhttp.onreadystatechange = function() { |
| if (xmlhttp.readyState == 4 && xmlhttp.status == 200) { |
| element.value = eval(xmlhttp.responseText); |
| } |
| } |
| xmlhttp.send(null); |
| } |
| function getElementsByClass(searchClass,node,tag) { |
| var classElements = new Array(); |
| if ( node == null ) |
| node = document; |
| if ( tag == null ) |
| tag = '*'; |
| var els = node.getElementsByTagName(tag); |
| var elsLen = els.length; |
| var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)"); |
| for (i = 0, j = 0; i < elsLen; i++) { |
| if ( pattern.test(els[i].className) ) { |
| classElements[j] = els[i]; |
| j++; |
| } |
| } |
| return classElements; |
| } |
| function createXMLHttp() { |
| if (typeof XMLHttpRequest != "undefined") |
| return new XMLHttpRequest(); |
| var xhrVersion = [ "MSXML2.XMLHttp.5.0", "MSXML2.XMLHttp.4.0","MSXML2.XMLHttp.3.0", "MSXML2.XMLHttp","Microsoft.XMLHttp" ]; |
| for (var i = 0; i < xhrVersion.length; i++) { |
| try { |
| var xhrObj = new ActiveXObject(xhrVersion[i]); |
| return xhrObj; |
| } catch (e) { } |
| } |
| return null; |
| } |
| function addLoadEvent(func) { |
| var oldonload = window.onload; |
| if (typeof window.onload != 'function') { |
| window.onload = func; |
| } else { |
| window.onload = function() { |
| func(); |
| oldonload(); |
| } |
| } |
| } |