ttrss - twitter

<?php
//v.5

$token            = 'xxxxxxxxxxxxxxxxxxxxxxxx';
$token_secret     = 'xxxxxxxxxxxxxxxxxxxxxxxx';
$consumer_key     = 'xxxxxxxxxxxxxxxxxxxxxxxx';
$consumer_secret  = 'xxxxxxxxxxxxxxxxxxxxxxxx';

$host = 'api.twitter.com';
$method = 'GET';
$path = '/1.1/statuses/user_timeline.json'; // api call path
$searchpath = '/1.1/search/tweets.json';

if (!isset( $_GET["screen_name"] ))
   $_GET["screen_name"] = 'lem0nabg';

if (!isset( $_GET["count"] ))
   $_GET["count"] = '20';

$sn = htmlspecialchars($_GET["screen_name"]);
$cnt = htmlspecialchars($_GET["count"]);
$q = htmlspecialchars($_GET["q"]);


if($q) {
  $query = array( // query parameters
      'q' => $q,
      'count' => $cnt,
      'result_type' => 'recent'
  );

} else {
  $query = array( // query parameters
      'screen_name' => $sn,
      'count' => $cnt,
      'exclude_replies' => 'false'
  );
}

$oauth = array(
    'oauth_consumer_key' => $consumer_key,
    'oauth_token' => $token,
    'oauth_nonce' => (string)mt_rand(), // a stronger nonce is recommended
    'oauth_timestamp' => time(),
    'oauth_signature_method' => 'HMAC-SHA1',
    'oauth_version' => '1.0'
);

$oauth = array_map("rawurlencode", $oauth); // must be encoded before sorting
$query = array_map("rawurlencode", $query);

$arr = array_merge($oauth, $query); // combine the values THEN sort

asort($arr); // secondary sort (value)
ksort($arr); // primary sort (key)

// http_build_query automatically encodes, but our parameters
// are already encoded, and must be by this point, so we undo
// the encoding step
$querystring = urldecode(http_build_query($arr, '', '&'));

if($q){
  $url = "https://$host$searchpath";
}else{
  $url = "https://$host$path";
}

// mash everything together for the text to hash
$base_string = $method."&".rawurlencode($url)."&".rawurlencode($querystring);

// same with the key
$key = rawurlencode($consumer_secret)."&".rawurlencode($token_secret);

// generate the hash
$signature = rawurlencode(base64_encode(hash_hmac('sha1', $base_string, $key, true)));

// this time we're using a normal GET query, and we're only encoding the query params
// (without the oauth params)
$url .= "?".http_build_query($query);
$url=str_replace("&amp;","&",$url); //Patch by @Frewuill

$oauth['oauth_signature'] = $signature; // don't want to abandon all that work!
ksort($oauth); // probably not necessary, but twitter's demo does it

// also not necessary, but twitter's demo does this too
function add_quotes($str) { return '"'.$str.'"'; }
$oauth = array_map("add_quotes", $oauth);

// this is the full value of the Authorization line
$auth = "OAuth " . urldecode(http_build_query($oauth, '', ', '));

// if you're doing post, you need to skip the GET building above
// and instead supply query parameters to CURLOPT_POSTFIELDS
$options = array( CURLOPT_HTTPHEADER => array("Authorization: $auth"),
                  //CURLOPT_POSTFIELDS => $postfields,
                  CURLOPT_HEADER => false,
                  CURLOPT_URL => $url,
                  CURLOPT_RETURNTRANSFER => true,
                  CURLOPT_SSL_VERIFYPEER => false);

// do our business
$feed = curl_init();
curl_setopt_array($feed, $options);
$json = curl_exec($feed);
curl_close($feed);

$twitter_data = json_decode($json, true);

function processString($s) {
    return preg_replace('/https?:\/\/[\w\-\.!~#?&=+\*\'"(),\/]+/','<a href="$0">$0</a>',$s);
}

if (isset( $_GET["test"] )){
   print('id: ' . gettype($twitter_data[0]['id']). '<br>'. PHP_EOL);
   print('id_str: ' . gettype($twitter_data[0]['id_str']). PHP_EOL);

   if ($_GET["test"] == 'json')
      $test = $json;
   else
      $test = $twitter_data;

   print("<pre>");
   print_r($test);
   print("</pre>". PHP_EOL);
}
if($q){
  $arrLen = count($twitter_data['statuses']);
} else {
  $arrLen = count($twitter_data);
}
date_default_timezone_set('Europe/Sofia');
$last_updated = date('Y-m-t\TH:i:sP');
$screen_name = "";
if($arrLen > 0){
  $last_updated = DateTime::createFromFormat('D M d H:i:s O Y', $twitter_data[0]['created_at']);
  $last_updated = date_format($last_updated, 'Y-m-d\TH:i:sP');
  $screen_name = $twitter_data[0]['user']['screen_name'];
}

if($q){
  $title = $q .' - Twitter Search';
}
else {
  $title = 'Twitter / ' . $sn;
}

print('<?xml version="1.0" encoding="utf-8"?>' .PHP_EOL);
print('<feed xml:lang="en-US" xmlns="http://www.w3.org/2005/Atom">' .PHP_EOL);
print('<title>' . $title .'</title>' .PHP_EOL);
print('<id>tag:twitter.com,2007:Status</id>' .PHP_EOL);
print('<link type="text/html" rel="alternate" href="http://twitter.com"/>' .PHP_EOL);
print('<link type="application/atom+xml" rel="self" href="http://lem0na.net/twitrss.php" />' .PHP_EOL);
print('<updated>' .$last_updated .'</updated>' .PHP_EOL);

for ($i=0; $i<$arrLen; $i++) {
      if($q){
        $item = $twitter_data['statuses'][$i];
      }
      else {
        $item = $twitter_data[$i];
      }
      print(PHP_EOL. '   <entry>'. PHP_EOL);
      print('      <id>https://twitter.com/'.$item['user']['screen_name'].'/statuses/'. $item['id_str'] .'</id>'. PHP_EOL);
      print('      <link href="https://twitter.com/'.$item['user']['screen_name'].'/statuses/'. $item['id_str'] .'" rel="alternate" type="text/html"/>'. PHP_EOL);
      print('      <title>'.$item['user']['screen_name'].': '.$item['text'].'</title>'. PHP_EOL);
      print('      <summary type="html"><![CDATA['.$item['user']['screen_name'].': '.$item['text'].']]></summary>'. PHP_EOL);

      $feedContent = '      <content type="html"><![CDATA[<html><body><p></p><p>'.$item['text'].'</p></body></html>]]></content>';
      $text = processString($feedContent);

      print($text . PHP_EOL);
      //Sat Jun 15 04:24:10 +0000 2013
      $last_updated = DateTime::createFromFormat('D M d H:i:s O Y', $item['created_at']);
      $last_updated = date_format($last_updated, 'Y-m-d\TH:i:sP');
      print('      <updated>'.$last_updated.'</updated>'. PHP_EOL);
      print('      <author><name></name></author>'. PHP_EOL);

      $hashLen = count($item['entities']['hashtags']);
      if ($hashLen > 0){
         for ($j=0; $j<$hashLen; $j++){
            print('      <category term="'.$item['entities']['hashtags'][$j]['text'].'"/>'. PHP_EOL);
         }
      }

   print('   </entry>'. PHP_EOL);
}

print('</feed>'. PHP_EOL);
print('<!-- vim:ft=xml -->');
?>