User:Func/wpfunc/blockiphelp.js
//
function BlockIpHelp()
{
var form = document.getElementById( 'blockip' );
if ( ! form || form.tagName != 'FORM' || ! form.wpBlockAddress ) return;
var span = document.createElement( 'SPAN' );
form.span = span; // avoid globals
// to the right of the IP or username field
//
form.wpBlockAddress.parentNode.insertBefore( span, form.wpBlockAddress.nextSibling );
function ipMessage( message, selectedIndex, color )
{ var span = document.createElement( 'SPAN' );
span.appendChild( document.createTextNode( ' ' + ( message || '' ) ) );
span.style.color = color || '#000000';
span.style.fontWeight = 'bold';
span.selectedIndex = selectedIndex || 0;
return span;
}
var expiry = {
'other' : 0,
'15 minutes' : 1,
'1 hour' : 2,
'3 hours' : 3,
'24 hours' : 4,
'48 hours' : 5,
'1 week' : 6,
'1 month' : 7,
'indefinite' : 8
};
span.ipNone = ipMessage();
span.ipNot = ipMessage( 'Not an IP.' , expiry[ '24 hours' ], '#009900' ); // green
span.ipUnknown = ipMessage( 'Unknown IP.' , expiry[ '1 hour' ], '#999900' ); // yellow
span.ipAOL = ipMessage( 'AOL IP address.', expiry[ '15 minutes' ], '#990000' ); // red
span.appendChild( span.ipNot ); // place holder
span.showMessage = function( span )
{ this.replaceChild( span, this.firstChild );
}
form.wpBlockAddress.onchange = function()
{
var ip = IpDottedToLong( this.value );
if ( ip === null ) this.form.span.showMessage( this.form.span.ipNone );
else if ( isNaN( ip ) ) this.form.span.showMessage( this.form.span.ipNot );
else if ( IsAOL( ip ) ) this.form.span.showMessage( this.form.span.ipAOL ); // what else, EarthLink?
else this.form.span.showMessage( this.form.span.ipUnknown );
this.form.wpBlockExpiry.selectedIndex = this.form.span.selectedIndex;
}
form.wpBlockAddress.onchange();
}
if ( window.addEventListener ) window.addEventListener( 'load', BlockIpHelp, false );
else if ( window.attachEvent ) window.attachEvent( 'onload', BlockIpHelp );
function IpDottedToLong( ip ) //-> number, Number.NaN for username, or null
{
if ( ! ip ) return null;
if ( ( ip.constructor != String ) ||
( (ip = ip.split( '.' )).length != 4 ) ) return Number.NaN;
//
for ( var i = 0; i < 4; i++ )
if ( isNaN( ip[ i ] = Number( ip[ i ] ) ) ||
ip[ i ] < 0 ||
ip[ i ] > 255 ) return Number.NaN;
// I "think" JavaScript numbers can handle this....
//
return ip[ 0 ] * 256 * 256 * 256 + // JS lacks an exponent op, I refuse to use Math.pow()
ip[ 1 ] * 256 * 256 +
ip[ 2 ] * 256 +
ip[ 3 ];
}
function IsAOL( ip )
{
if ( ip < 1074528256 ) return false; // 64. 12. 0. 0 ..
else if ( ip <= 1074593791 ) return true; // .255.255
else if ( ip < 2511208448 ) return false; // 149.174. 0. 0 ..
else if ( ip <= 2511273983 ) return true; // .255.255
else if ( ip < 2560819200 ) return false; // 152.163. 0. 0 ..
else if ( ip <= 2560884735 ) return true; // .255.255
else if ( ip < 2894069760 ) return false; // 172.128. 0. 0 ..
else if ( ip <= 2899574783 ) return true; // .211.255.255
else if ( ip < 3277651968 ) return false; // 195. 93. 0. 0 ..
else if ( ip <= 3277684735 ) return true; // .127.255
else if ( ip < 3327197184 ) return false; // 198. 81. 0. 0 ..
else if ( ip <= 3327205375 ) return true; // . 31.255
else if ( ip < 3393404928 ) return false; // 202. 67. 64. 0 ..
else if ( ip <= 3393421311 ) return true; // .127.255
else if ( ip < 3451650048 ) return false; // 205.188. 0. 0 ..
else if ( ip <= 3451715583 ) return true; // .255.255
else if ( ip < 3486007296 ) return false; // 207.200. 64. 0 ..
else if ( ip <= 3486023679 ) return true; // .127.255
else return false;
}
//