*/
// must be run within Dokuwiki
if(!defined('DOKU_INC')) die();
if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
require_once(DOKU_PLUGIN.'action.php');
class action_plugin_googlesearch extends DokuWiki_Action_Plugin {
/**
* return some info
*/
function getInfo(){
return array(
'author' => 'Andreas Gohr',
'email' => 'gohr@cosmocode.de',
'date' => '2006-07-17',
'name' => 'Google Search Plugin',
'desc' => 'Search the wiki using the Google API',
'url' => 'http://wiki:splitbrain.org/plugin:googlesearch',
);
}
/**
* register the eventhandlers
*/
function register(&$controller){
$controller->register_hook('ACTION_ACT_PREPROCESS',
'BEFORE',
$this,
'handle_act_preprocess',
array());
$controller->register_hook('TPL_ACT_UNKNOWN',
'BEFORE',
$this,
'handle_act_unknown',
array());
}
/**
* Checks if 'googlesearch' was given as action, if so we
* do handle the event our self and no further checking takes place
*/
function handle_act_preprocess(&$event, $param){
if($event->data != 'googlesearch') return; // nothing to do for us
$event->stopPropagation(); // this is our very own action, no need to check other plugins
$event->preventDefault(); // we handle it our self, thanks
}
/**
* If our own 'googlesearch' action was given we produce our content here
*/
function handle_act_unknown(&$event, $param){
if($event->data != 'googlesearch') return; // nothing to do for us
// we can handle it -> prevent others
$event->stopPropagation();
$event->preventDefault();
global $QUERY;
$this->_search($QUERY,$_REQUEST['start']);
}
/**
* Do the google search and display the results
*/
function _search($q,$start=0){
global $conf;
require_once(dirname(__FILE__).'/nusoap.php');
require_once(dirname(__FILE__).'/GoogleAPI.php');
$start = (int) $start;
if($start < 0) $start = 0;
//prepare site URL
$urlinfo = parse_url(DOKU_URL);
$url = $urlinfo['host'];
// do the search
$API = new GoogleAPI($this->getConf('apikey'),$url);
$ret = $API->do_search($q,$start,$this->getConf('maxresults'));
// handle errors
if($ret === false){
echo $this->locale_xhtml('error');
echo '';
echo $this->external_link('http://www.google.com/search?hl=en&safe=off&q='.
urlencode("site:$url $q"),'Search for '.hsc($q),
'urlextern',$conf['target']['extern']);
echo '
';
echo 'Error: '.hsc($API->error).'
';
return;
}
// no results
if(!count($ret['resultElements'])){
echo $this->locale_xhtml('noresult');
return;
}
// give info
if($ret['estimateIsExact']){
$info = $this->getLang('resultinfo');
}else{
$info = $this->getLang('estimateinfo');
}
$info = str_replace('%from',$ret['startIndex'],$info);
$info = str_replace('%to',$ret['endIndex'],$info);
$info = str_replace('%num',$ret['estimatedTotalResultsCount'],$info);
$info = str_replace('%q',hsc($q),$info);
echo $this->locale_xhtml('result');
echo "$info
";
// output results
foreach($ret['resultElements'] as $hit){
echo '';
echo $this->external_link($hit['URL'],$hit['title'],
'wikilink1',$conf['target']['intern']);
echo '
';
echo $hit['snippet'];
echo '
';
echo '
';
// give paging buttons
if($ret['startIndex'] > 1){
$prev = $ret['startIndex'] - $this->getConf('maxresults') - 1;
if($prev < 0) $prev = 0;
echo $this->external_link(wl('',array('do'=>'googlesearch','id'=>$q,'start'=>$prev),'false','&'),
$this->getLang('prev'),'wikilink1 gs_prev',$conf['target']['intern']);
}
if($ret['endIndex'] < $ret['estimatedTotalResultsCount'] - $this->getConf('maxresults')){
$next = $ret['endIndex'] + $this->getConf('maxresults');
echo $this->external_link(wl('',array('do'=>'googlesearch','id'=>$q,'start'=>$next),'false','&'),
$this->getLang('next'),'wikilink1 gs_next',$conf['target']['intern']);
}
echo '
';
//dbg($ret);
}
/**
* Outputs the search form
*
* Static function to call from your template like this:
* action_plugin_googlesearch::searchform()
*/
function searchform(){
global $lang;
global $ACT;
global $QUERY;
print '';
}
}
//Setup VIM: ex: et ts=4 enc=utf-8 :