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<?php
//require("settings.php");
class TwisterPost
{
// public $user = '';
require("settings.php");
//public $rpcuser = '';
//public $rpcpassword = '';
//public $rpchost = '127.0.0.1';
//public $rpcport = 28332;
public $lastError = null;
protected $maxId = false;
// see updateSeenHashtags in https://github.com/miguelfreitas/twister-core/blob/master/src/twister.cpp
protected $hashBreakChars = " \n\t.,:/?!";
public function __construct($user)
{
$this->user = $user;
}
public function runRpcCommand($method, $params = array())
{
$request = new stdClass;
$request->jsonrpc = '2.0';
$request->id = uniqid('', true);
$request->method = $method;
$request->params = $params;
if (defined('JSON_UNESCAPED_UNICODE')) { // PHP 5.4+:
$request_json = json_encode($request, JSON_UNESCAPED_UNICODE);
} else { // PHP 5.3:
$request_json = json_encode($request);
$request_json = preg_replace_callback('/\\\\u([0-9a-f]{4})/i', function($matches){return mb_convert_encoding(pack('H*', $matches[1]), 'UTF-8', 'UTF-16');}, $request_json);
}
$ch = curl_init();
$url = "http://{$this->rpchost}:{$this->rpcport}/";
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
'Authorization: Basic ' . base64_encode($this->rpcuser . ':' . $this->rpcpassword),
'Content-Type: application/json; charset=utf-8'
));
curl_setopt($ch, CURLOPT_POSTFIELDS, $request_json);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$response_json = curl_exec($ch);
if (curl_errno($ch) || curl_getinfo($ch, CURLINFO_HTTP_CODE) != 200) {
curl_close($ch);
return false;
}
curl_close( $ch );
$response = json_decode($response_json);
if (!is_object( $response ) ||
(isset( $response->error ) && !is_null($response->error)) ||
!isset( $response->result ) || !isset( $response->id ) || $response->id !== $request->id)
{
return false;
}
return $response->result;
}
public function updateMaxId()
{
$this->lastError = null;
$this->maxId = -1;
$result = $this->runRpcCommand('getposts', array(1, array(array('username' => $this->user))));
if ($result === false || (isset($result->code) && $result->code < 0)) {
$this->maxId = false;
$this->lastError = $result;
return false;
}
foreach($result as $item) {
if (isset($item->userpost->n) && $item->userpost->n === $this->user) {
$this->maxId = $item->userpost->k;
}
}
$result = $this->runRpcCommand('dhtget', array($this->user, 'status', 's'));
if ($result === false || (isset($result->code) && $result->code < 0)) {
$this->maxId = false;
$this->lastError = $result;
return false;
}
foreach($result as $item) {
if (isset($item->sig_user) && isset($item->p) && $item->sig_user === $this->user) {
if (isset($item->p->seq)) {
$this->maxId = max($this->maxId, $item->p->seq);
}
if (isset($item->p->v) && isset($item->p->v->userpost) && isset($item->p->v->userpost->k)) {
$this->maxId = max($this->maxId, $item->p->v->userpost->k);
}
}
}
return true;
}
public function postMessage($text)
{
$this->lastError = null;
if ($this->maxId === false) {
if (!$this->updateMaxId()) {
return false;
}
}
$k = $this->maxId + 1;
$result = $this->runRpcCommand('newpostmsg', array($this->user, $k, $text));
if (!isset($result->userpost) || !isset($result->userpost->k) || ($result->userpost->k != $k)) {
$this->maxId = false;
$this->lastError = $result;
return false;
}
$this->maxId = $k;
return true;
}
public function prettyPrint($title, $url = '', $tags = null, $maxLen = 140)
{
$title_len = mb_strlen($title);
$url_len = mb_strlen($url);
if ($url_len === 0) {
if ($title_len > $maxLen) {
$text = rtrim(mb_substr($title, 0, $maxLen - 1), ' ') . '…';
} else {
$text = $title;
}
} else if ($title_len + 1 + $url_len > $maxLen) {
$text = rtrim(mb_substr($title, 0, $maxLen - 2 - $url_len), ' ') . '… ' . $url;
} else {
$text = $title . ' ' . $url;
}
if (isset($tags)) {
foreach ($tags as $tag) {
$tagText = (string)$tag;
$tagText = strtr($tagText, $this->hashBreakChars, str_repeat('_', strlen($this->hashBreakChars)));
$tagText = trim($tagText, '_');
$tagText = preg_replace('#(?<=_)_+#', '', $tagText);
if (!empty($tagText)) {
$text .= ' #' . $tagText;
}
}
if(mb_strlen($text) > $maxLen) {
$text = mb_substr($text, 0, $maxLen + 1);
$pos = mb_strrpos($text, ' ');
$text = mb_substr($text, 0, $pos);
}
}
return $text;
}
}