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|
<?php
/**
* Sean's Simple Twitter Library
*
* Probably a little more or a little less than you need.
*
* Copyright 2008, Sean Coates
* Usage of the works is permitted provided that this instrument is retained
* with the works, so that any entity that uses the works is notified of this
* instrument.
* DISCLAIMER: THE WORKS ARE WITHOUT WARRANTY.
* ( Fair License - http://www.opensource.org/licenses/fair.php )
* Short license: do whatever you like with this.
*
* komode: le=unix language=php codepage=utf8 tab=4 notabs indent=4
*/
class Twitter {
/**
* Base URL for Twitter API
*
* Do not specify user/password in URL
*/
protected $baseUrl = 'http://twitter.com/';
/**
* Full base URL (includes user/pass)
*
* (created in Init)
*/
protected $baseUrlFull = null;
/**
* Twitter API user
*/
protected $user;
/**
* Twitter API password
*/
protected $pass;
/**
* Constructor; sets up configuration.
*
* @param string $user Twitter user name; null for limited read-only access
* @param string $pass Twitter password; null for limited read-only access
*/
public function __construct($user=null, $pass=null) {
$this->baseUrlFull = $this->baseUrl;
if (null !== $user) {
// user is defined, so use it in the URL
$this->user = $user;
$this->pass = $pass;
$parsed = parse_url($this->baseUrl);
$this->baseUrlFull = $parsed['scheme'] . '://' . $this->user . ':' .
$this->pass . '@' . $parsed['host'];
// port (optional)
if (isset($parsed['port']) && is_numeric($parsed['port'])) {
$this->baseUrlFull .= ':' . $parsed['port'];
}
// append path (default: /)
if (isset($parsed['path'])) {
$this->baseUrlFull .= $parsed['path'];
} else {
$this->baseUrlFull .= '/';
}
}
}
/**
* Fetches a tweet by its number/id
*
* @param int $num the tweet id/number
* @return string (null on failure)
*/
public function getTweetByNum($num) {
if (!is_numeric($num)) {
return;
}
$tweet = json_decode(file_get_contents($this->getUrlStatus($num)));
return $tweet;
}
/**
* Reads [last] tweet from user
*
* @param string $tweeter the tweeter username
* @param int $num this many tweets ago (1 = current tweet)
* @return string (false on failure)
*/
public function getLastTweet($tweeter, $num = 1)
{
$source = json_decode(file_get_contents($this->getUrlUserTimeline($tweeter)));
if ($num > count($source)) {
return false;
}
$tweet = $source[$num - 1];
if (!isset($tweet->user->screen_name) || !$tweet->user->screen_name) {
return false;
}
return $tweet;
}
/**
* fetches mentions for a user
*/
public function getMentions($sinceId=null, $count=20) {
return json_decode(file_get_contents($this->getUrlMentions($sinceId, $count)));
}
/**
* Fetches followers for a user
*/
public function getFollowers($cursor=-1) {
return json_decode(file_get_contents($this->getUrlFollowers($cursor)));
}
/**
* Follow a userid
*/
public function follow($userId) {
$params = array(
'http' => array(
'method' => 'POST',
'content' => array(),
'header' => 'Content-type: application/x-www-form-urlencoded',
)
);
$ctx = stream_context_create($params);
$fp = fopen($this->getUrlFollow($userId), 'rb', false, $ctx);
if (!$fp) {
return false;
}
$response = stream_get_contents($fp);
if ($response === false) {
return false;
}
$response = json_decode($response);
return $response;
}
/**
* fetches DMs for a user
*/
public function getDMs($sinceId=null, $count=20, $page=1) {
return json_decode(file_get_contents($this->getUrlDMs($sinceId, $count, $page)));
}
/**
* Send DM
*/
public function sendDM($screenName, $text) {
$data = http_build_query(array('screen_name'=>$screenName, 'text'=>$text));
$params = array(
'http' => array(
'method' => 'POST',
'content' => $data,
'header' => 'Content-type: application/x-www-form-urlencoded',
)
);
$ctx = stream_context_create($params);
$fp = fopen($this->getUrlSendDM(), 'rb', false, $ctx);
if (!$fp) {
return false;
}
$response = stream_get_contents($fp);
if ($response === false) {
return false;
}
$response = json_decode($response);
return $response;
}
/**
* Sends a tweet
*
* @param string $txt the tweet text to send
* @return string URL of tweet (or false on failure)
*/
public function sendTweet($txt, $limit=true) {
if ($limit) {
$txt = substr($txt, 0, 140); // twitter message size limit
}
$data = 'status=' . urlencode($txt);
$params = array(
'http' => array(
'method' => 'POST',
'content' => $data,
'header' => 'Content-type: application/x-www-form-urlencoded',
)
);
$ctx = stream_context_create($params);
$fp = fopen($this->getUrlTweetPost(), 'rb', false, $ctx);
if (!$fp) {
return false;
}
$response = stream_get_contents($fp);
if ($response === false) {
return false;
}
$response = json_decode($response);
return $response;
}
/**
* Returns the base API URL
*/
protected function getUrlApi() {
return $this->baseUrlFull;
}
/**
* Returns the status URL
*
* @param int $num the tweet number
*/
protected function getUrlStatus($num) {
return $this->getUrlApi() . 'statuses/show/'. urlencode($num) .'.json';
}
/**
* Returns the user timeline URL
*/
protected function getUrlUserTimeline($user) {
return $this->getUrlApi() . 'statuses/user_timeline/'. urlencode($user) .'.json';
}
/**
* Returns the tweet posting URL
*/
protected function getUrlTweetPost() {
return $this->getUrlApi() . 'statuses/update.json';
}
/**
* Output URL: status
*/
public function getUrlOutputStatus(StdClass $tweet) {
return $this->baseUrl . urlencode($tweet->user->screen_name) . '/statuses/' . urlencode($tweet->id);
}
/**
* Return mentions URL
*/
public function getUrlMentions($sinceId=null, $count=20) {
$url = $this->baseUrlFull . 'statuses/mentions.json?count=' . urlencode($count);
if ($sinceId !== null) {
$url .= '&since_id=' . urlencode($sinceId);
}
return $url;
}
/**
* Returns the followers URL
*/
public function getUrlFollowers($cursor=-1) {
return $this->baseUrlFull . 'statuses/followers.json?cursor=' . ((int)$cursor);
}
/**
* Returns the follow-user URL
*/
public function getUrlFollow($userid) {
return $this->baseUrlFull . 'friendships/create/' . ((int) $userid) . '.json';
}
/**
* Returns the get DMs URL
*/
public function getUrlDMs($sinceId=null, $count=20, $page=1) {
$url = $this->baseUrlFull . 'direct_messages.json?';
if ($sinceId !== null) {
$url .= 'since_id=' . urlencode($sinceId);
}
$url .= "&page={$page}";
$url .= "&count={$count}";
return $url;
}
/**
* Returns the send DM URL
*/
public function getURLSendDM() {
return $this->baseUrlFull . 'direct_messages/new.json';
}
}
|
