public function wx_get_jsapi_ticket()
{
$ticket = "";
do {
$ticket = S('wx_ticket');
if (!empty($ticket)) {
break;
}
$token = S('access_token');
if (empty($token)) {
$this->wx_get_token();
}
$token = S('access_token');
if (empty($token)) {
logErr("get access token error.");
break;
}
$url2 = sprintf("https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=%s&type=jsapi", $token);
$res = file_get_contents($url2);
$res = json_decode($res, true);
$ticket = $res['ticket'];
// 注意：这里需要将获取到的ticket缓存起来（或写到数据库中）
// ticket和token一样，不能频繁的访问接口来获取，在每次获取后，我们把它保存起来。
S('wx_ticket', $ticket, 7000);
} while (0);
return $ticket;
}
/**
* Creates the square image from the given image in maximum size.
* Scales the image up or down and makes the non-covered parts transparent.
*
* @param string $origPath Full path to original image
* @param string $ext File extension ("jpg" or "png")
* @param string $targetPath Full path to target image file
* @param integer $maxSize Maxium image size the server supports
*
* @return boolean True if all went well, false if there was an error
*/
function createSquare($origPath, $ext, $targetPath, $maxSize)
{
if ($ext == 'png') {
$imgOrig = imagecreatefrompng($origPath);
} else {
if ($ext == 'jpg' || $ext == 'jpeg') {
$imgOrig = imagecreatefromjpeg($origPath);
} else {
//unsupported format
return false;
}
}
if ($imgOrig === false) {
logErr('Error loading image file: ' . $origPath);
return false;
}
$imgSquare = imagecreatetruecolor($maxSize, $maxSize);
imagealphablending($imgSquare, false);
imagefilledrectangle($imgSquare, 0, 0, $maxSize - 1, $maxSize - 1, imagecolorallocatealpha($imgSquare, 0, 0, 0, 127));
imagealphablending($imgSquare, true);
$oWidth = imagesx($imgOrig);
$oHeight = imagesy($imgOrig);
if ($oWidth > $oHeight) {
$flScale = $maxSize / $oWidth;
} else {
$flScale = $maxSize / $oHeight;
}
$nWidth = (int) ($oWidth * $flScale);
$nHeight = (int) ($oHeight * $flScale);
imagecopyresampled($imgSquare, $imgOrig, ($maxSize - $nWidth) / 2, ($maxSize - $nHeight) / 2, 0, 0, $nWidth, $nHeight, $oWidth, $oHeight);
imagesavealpha($imgSquare, true);
imagepng($imgSquare, $targetPath);
imagedestroy($imgSquare);
imagedestroy($imgOrig);
return true;
}
function updateUser($uid, $mysqli)
{
//TODO save an history of (different) ip and ua for each user
$ip = getUserIP();
$ua = sanitize($_SERVER['HTTP_USER_AGENT']);
$hd = getHeaders();
$d = date("Y-m-d H:i:s");
if ($mysqli->query("UPDATE users SET ip='" . $ip . "', ua='" . $ua . "',lastupdate='" . $d . "',status=1,lastonline='" . $d . "',headers='" . $hd . "' WHERE id=" . $uid . ";") === FALSE) {
logErr("Failed to update information of the user [" . $ip . "]");
}
}