Extension:Yahoo

Code

<?php
/**
 * MediaWiki Yahoo extension
 *
 * @file
 * @ingroup Extensions
 * @version 1.2
 * @author Guy Taylor
 * @link https://wwww.mediawiki.org/wiki/Extension:Yahoo Documentation
 */
if ( !defined( 'MEDIAWIKI' ) ) {
	die( 'This is not a valid entry point.' );
}
// Extension credits that show up on Special:Version
$wgExtensionCredits['parserhook'][] = array(
	'name' => 'Yahoo',
	'author' => 'Guy Taylor',
	'version' => '1.2',
	'description' => 'Renders the Yahoo Button showing users online status',
	'url' => 'https://www.mediawiki.org/wiki/Extension:Yahoo',
);
// set up MediaWiki to react to the <yahoo> tag
$wgHooks['ParserFirstCallInit'][] = 'wfYahoo';
function wfYahoo( &$parser ) {
	$parser->setHook( 'yahoo', 'renderYahoo' );
	return true;
}
// the function that reacts to "<yahoo>"
function renderYahoo( $input, $argv ) {
	// set your defaults for the style and action (addfriend, call or sendim) (0, 1, 2, 3 and 4)
	$style_default = '2';
	$action_default = 'sendim';
	// escape $input to prevent XSS
	$input = htmlspecialchars( $input );
	// the varibles are: <yahoo style="$argv['style']" action="$argv['action']">$input</yahoo>
	// Test to see if the optional elements of the tags are set and supported.
	// If not, set them to the defaults.
	if( isset( $argv['style'] ) ) {
		$style = $argv['style'];
		if( !( $style == '0' || $style == '1' || $style == '2' || $style == '3' || $style == '4' || $style == '5' ) ) {
			$style = $style_default;
		}
	} else {
		$style = $style_default;
	}
	if( isset( $argv['action'] ) ) {
		$action = $argv['action'];
		if( !( $action == 'addfriend' || $action == 'sendim' || $action == 'call' ) ) {
			$action = $action_default;
		}
	} else {
		$action = $action_default;
	}
	// set the url to the image and the style of the image
	switch( $style ) {
		case '0':
			$image = '<img src="http://opi.yahoo.com/online?u=' . $input . '&m=g&t=0" ';
			$image .= ' style="border: none; width: 12px; height: 12px;" alt="My status" />';
			break;
		case '1':
			$image = '<img src="http://opi.yahoo.com/online?u=' . $input . '&m=g&t=1" ';
			$image .= ' style="border: none; width: 64px; height: 16px;" alt="My status" />';
			break;
		case '2':
			$image = '<img src="http://opi.yahoo.com/online?u=' . $input . '&m=g&t=2" ';
			$image .= ' style="border: none; width: 125px; height: 25px;" alt="My status" />';
			break;
		case '3':
			$image = '<img src="http://opi.yahoo.com/online?u=' . $input . '&m=g&t=3" ';
			$image .= ' style="border: none; width: 86px; height: 16px;" alt="My status" />';
			break;
		case '4':
			$image = '<img src="http://opi.yahoo.com/online?u=' . $input . '&m=g&t=4" ';
			$image .= ' style="border: none; width: 12px; height: 12px;" alt="My status" />';
			break;
		case '5':
			$image = '<img src="http://opi.yahoo.com/online?u=' . $input . '&m=g&t=5" ';
			$image .= ' style="border: none; width: 12px; height: 12px;" alt="My status" />';
			break;
	}
	// start the rendering the html outupt
	$output = '<!-- MediaWiki extension https://www.mediawiki.org/wiki/Extension:Yahoo -->';
	$output .= '<a href="ymsgr:' . $action . '?' . $input . '">' . $image . '</a>';
	$output .= '<!-- end of Yahoo button -->';
	// send the output to MediaWiki
	return $output;
}

Installation

Example

ChangeLog

References

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