// ==UserScript==
// @name Webmaster Tools Nofollow Checker
// @namespace http://geeklad.com
// @description This script will check external links to see if they are nofollow links.
// @include https://www.google.com/webmasters/tools/externallinks*bplink=*
// ==/UserScript==
// Register menu commands
GM_registerMenuCommand("Delete Nofollow Rows", function() {
GM_setValue("deletenofollow", confirm("Remove nofollow rows?"));
});
GM_registerMenuCommand("Delete Link not Found Rows", function() {
GM_setValue("deletenolink", confirm("Remove rows with missing links?"));
});
// Define the global variables
var siteurl = document.body.innerHTML.match(/Find link details for: ([^\n]*)/)[1];
var datatable = document.getElementById("sectionContent").getElementsByTagName("table")[1];
var subpage = datatable.getElementsByTagName("tr")[0].getElementsByTagName("input")[0].value;
var subpageurl = siteurl + subpage;
// Pagerank functions
// Code for GooglePR, googleCH, myfmod, c32to8bit, exclude, strord, mix, zeroFill, and hexdec was borrowed from the SEO Link Analysis Firefox extension
// Visit http://yoast.com/seo-tools/link-analysis/ for more info
function GooglePR(url, row) {
var url1 = "info:"+url;
var url2 = exclude( url ).replace( /_/, "%5F" );
var ch = strord(url1);
var chSum = googleCH(ch);
var newCh = googleNewCh(chSum);
var term1 = /^http:/;
var term2 = /^http:\/\/.*google\..*\/(search|images|groups|news).*/;
var term3 = /^http:\/\/.*\..*/;
var myURL = "http://toolbarqueries.google.com/search?client=navclient-auto&ch=" + "6" + newCh + "&ie=UTF-8&oe=UTF-8&features=Rank&q=info:" +url2;
GM_xmlhttpRequest({
method: 'GET',
url: myURL,
headers: {
'User-agent': 'Mozilla/4.0 (compatible; GoogleToolbar 2.0.114-big; Windows XP 5.1)',
'Accept': 'application/atom+xml,application/xml,text/xml',
},
onload: function(responseDetails) {
var temp = responseDetails.responseText;
var temp1 = temp.match(/Rank_.*?:.*?:(\d+)/i);
var rank = (temp1) ? temp1[1] : "-";
row.innerHTML = row.innerHTML.replace("Checking PR...", rank);
}
});
}
function googleCH( url ) {
var init = 0xE6359A60;
var length = url.length;
var a = 0x9E3779B9;
var b = 0x9E3779B9;
var c = 0xE6359A60;
var k = 0;
var len = length;
var mixo = new Array();
while( len >= 12 ) {
a += (url[k+0] +(url[k+1]<<8) +(url[k+2]<<16) +(url[k+3]<<24));
b += (url[k+4] +(url[k+5]<<8) +(url[k+6]<<16) +(url[k+7]<<24));
c += (url[k+8] +(url[k+9]<<8) +(url[k+10]<<16)+(url[k+11]<<24));
mixo = mix(a,b,c);
a = mixo[0]; b = mixo[1]; c = mixo[2];
k += 12;
len -= 12;
}
c += length;
switch( len ) {
case 11:
c += url[k+10]<<24;
case 10:
c+=url[k+9]<<16;
case 9 :
c+=url[k+8]<<8;
case 8 :
b+=(url[k+7]<<24);
case 7 :
b+=(url[k+6]<<16);
case 6 :
b+=(url[k+5]<<8);
case 5 :
b+=(url[k+4]);
case 4 :
a+=(url[k+3]<<24);
case 3 :
a+=(url[k+2]<<16);
case 2 :
a+=(url[k+1]<<8);
case 1 :
a+=(url[k+0]);
}
mixo = mix( a, b, c );
if( mixo[2] < 0 ) {
return ( 0x100000000 + mixo[2] );
} else {
return mixo[2];
}
}
function googleNewCh(ch ) {
ch = ( ( ( ch / 7 ) << 2 ) | ( ( myfmod( ch,13 ) ) & 7 ) );
prbuf = new Array();
prbuf[0] = ch;
for( i = 1; i < 20; i++ ) {
prbuf[i] = prbuf[i-1] - 9;
}
ch = googleCH(c32to8bit( prbuf ), 80 );
return ch;
}
function myfmod( x, y ) {
var i = Math.floor( x / y );
return ( x - i * y );
}
function c32to8bit( arr32 ) {
var arr8 = new Array();
for( i = 0; i < arr32.length; i++ ) {
for( bitOrder = i * 4; bitOrder <= i * 4 + 3; bitOrder++ ) {
arr8[bitOrder] = arr32[i] & 255;
arr32[i] = zeroFill( arr32[i], 8 );
}
}
return arr8;
}
function exclude( url ) {
return escape(url).replace(/\+/g, '%2B').replace(/\"/g, '%22').replace(/\'/g, '%27');
}
function strord(string) {
var result = new Array();
for(i = 0; i < string.length; i++ ) {
result[i] = string[i].charCodeAt( 0 );
}
return result;
}
function mix( a, b, c ) {
a -= b; a -= c; a ^= (zeroFill( c, 13 ) );
b -= c; b -= a; b ^= ( a << 8 );
c -= a; c -= b; c ^= (zeroFill( b, 13 ) );
a -= b; a -= c; a ^= (zeroFill( c, 12 ) );
b -= c; b -= a; b ^= ( a << 16);
c -= a; c -= b; c ^= (zeroFill( b, 5 ) );
a -= b; a -= c; a ^= (zeroFill( c, 3 ) );
b -= c; b -= a; b ^= ( a << 10);
c -= a; c -= b; c ^= (zeroFill( b, 15 ) );
var ret = new Array( (a), (b), (c) );
return ret;
}
function zeroFill( a, b ) {
var z = hexdec( 80000000 );
if( z & a ) {
a = a >> 1;
a &= ~z;
a |= 0x40000000;
a = a >> ( b - 1 );
}
else {
a = a >> b;
}
return (a);
}
function hexdec( str ) {
return parseInt( str, 16 );
}
// Function for checking links
function checkNoFollow(page, link, row) {
// Display loading message
row.innerHTML += "| Checking Link... | Checking PR... | ";
GM_xmlhttpRequest({
method: "GET",
url: link,
onload: function (response) {
// Strip the trailing slash on the subpage URL if there is one
if(page.substring(page.length-1, page.length) == "/")
page = page.substring(0, page.length-1);
try {
// Get all of the anchors with the subpage URL
anchors = response.responseText.match("])*" + page + ")[^>]*>", "gi").join("");
if(anchors.match(/nofollow/i)) {
nofollow = "Yes";
// Check to see if we delete the row
if (GM_getValue("deletenofollow", true)) {
row.parentNode.removeChild(row);
return;
}
} else
nofollow = "No";
}
catch(err) {
// If the subpage URL isn't found, the join method will cause it to blow up, so we know the link wasn't found
nofollow = "Link not found";
// Check to see if we delete the row
if (GM_getValue("deletenolink", true)) {
row.parentNode.removeChild(row);
return;
}
}
// Output the nofollow status
row.innerHTML = row.innerHTML.replace("Checking Link...", nofollow);
}
});
}
// Add the new column labels
datatable.getElementsByTagName("tr")[1].innerHTML += "Nofollow* | PageRank | ";
datatable.getElementsByTagName("tr")[0].getElementsByTagName("td")[1].colSpan = 3;
datatable.getElementsByTagName("tr")[datatable.rows.length-1].getElementsByTagName("td")[2].colSpan = 4;
// Add the new columns
for each(row in datatable.getElementsByTagName("tr")) {
if (row.rowIndex > 1) {
linkurl = row.getElementsByTagName("a")[0].href;
checkNoFollow(subpageurl, linkurl, row);
GooglePR(linkurl, row);
}
}