Facebook application: Rss notifier


<?php //create 1 hour life cookie to prevent duplicate news



feed story.

/*

session_start();

if(isset($_SESSION['views']))

  $_SESSION['views']=$_SESSION['views']+1;

else

  $_SESSION['views']=1;

echo "Total Visits: ". $_SESSION['views'];

//*/

////////// session or cookie /////////////////

if (isset($_COOKIE["updatetime"])){

}

else{

setcookie("updatetime", time(), time()+3600);

}



?>





<?php

require_once 'facebook.php';



$appapikey = '3d3fabe3276d1dd50ddf78353c719af4';

$appsecret = 'fe4754d97d24392ba9e40105f0ea0a08';

$facebook = new Facebook($appapikey, $appsecret);

$user_id = $facebook->require_login();



// Greet the currently logged-in user!

echo "<p>Hello, <fb:name uid=\"$user_id\" useyou=\"false\"



/>!<br/>"." There are new messages on the YQLM group.</p>";

?>



<?php

// Parse the Rss feed.

$doc = new DOMDocument();

$doc->load



('http://groups.google.co.uk/group/londonppl/feed/atom_v1_0_ms



gs.xml');

//$doc->load



('http://feeds.feedburner.com/YqlmLondonGoogleGroup');

$arr = array();

foreach ($doc->getElementsByTagName('entry') as $node) {

$itemRSS = array (

'author' => $node->getElementsByTagName



('name')->item(0)->nodeValue,

'email' => $node->getElementsByTagName



('email')->item(0)->nodeValue,

'date' => $node->getElementsByTagName



('updated')->item(0)->nodeValue,

'link' => $node->getElementsByTagName('link')



->item(0)->getAttribute("href"),

'title' => $node->getElementsByTagName



('title')->item(0)->nodeValue,

'desc' => $node->getElementsByTagName



('summary')->item(0)->nodeValue);

array_push($arr, $itemRSS);

}

?>





<?php

// Show Rss contents in facebook canvas.

$dashbutton = <<<EndHereDoc

<fb:dashboard> <fb:create-button



href="http://www.facebook.com/apps/application.php?



id=11393681690">Add/Remove this application</fb:create-button>



</fb:dashboard>

EndHereDoc;

echo $dashbutton;



for ($i=0;$i<10;$i++){

echo '<br/>'.'==================='.'<br/>';

$item = $arr[$i];

$author = ($item['author']=="")?$item['email']:$item



['author'];

$content = '<b>'.$author.'</b><i> said on </i>'.$item



['date'].'<br/>'.'<a href="'.$item['link'].'">'.$item



['title'].'</a><br/><li>'.$item['desc'].'</li>';

echo $content;

}



?>





<?php

// Generate short contents in users' profile file.

$profilecontent = '<a



href="http://apps.facebook.com/googlegroupsnotifier">YQLM



Group</a><br/>';

for ($i=0;$i<2;$i++){

$pitem = $arr[$i];

$author = ($pitem['author']=="")?$pitem



['email']:$pitem['author'];

$profilecontent =



$profilecontent.'==================='.'<br/><b>'.$author.'</b>



<i> said on </i>'.$pitem['date'].'<br/><i>'.$pitem



['title'].'</i><br/><li>'.$pitem['desc'].'</li><br/>';

}

?>









<?php

///*

// This is for fbml_setRefHandle

$fbml = <<<EndHereDoc

<fb:wide>

$profilecontent

<fb:editor



action="http://apps.facebook.com/googlegroupsnotifier">

<fb:editor-button value="More messages"/>

</fb:editor>

</fb:wide>

<fb:narrow>

$profilecontent

<fb:editor



action="http://apps.facebook.com/googlegroupsnotifier">

<fb:editor-button value="More messages"/>

</fb:editor>

</fb:narrow>

EndHereDoc;



$facebook->api_client->fbml_setRefHandle



("googlegroupsnotifier",$fbml);

// */





$refinprofile = '<fb:ref handle="googlegroupsnotifier" />';

$facebook->api_client->profile_setFBML



($refinprofile,$user_id);



?>





<?php



// This is for news feed/mini feed.

$title_template = "{actor} viewed the group";

$title_data = null;

$body_template = null;

$body_data = null;



$fitem = $arr[0];

$author = ($fitem['author']=="")?$fitem



['email']:$fitem['author'];

$feedcontent = '<br/>'.$author.' said



<br/><b>'.$fitem['desc'].'</b><br/> in the topic of



'.'<i>'.$fitem['title'].'</i>';



$body_general = 'The latest post : <br/>'.$feedcontent;



//print_r($_COOKIE);

//echo time()-$_COOKIE["updatetime"];

if (time()-$_COOKIE["updatetime"]>3600){

echo "<br/><i>A new news feed will be published in the



next 1 hour.</i>";

try{

$facebook->api_client-



>feed_publishTemplatizedAction



($title_template,$title_data,$body_template,$body_data,$body_g



eneral);

}catch(Exception $e) {

//this will clear cookies for your app and



redirect them to a login prompt

echo "<br/><br/><i>"."Update the news feed too



many times, no news will appear today."."</i>";

$facebook->set_user(null, null);

}

}

else

echo "<br/><i>No news feed will be published in the



next 1 hour.</i>";

?>