Gravatar.php
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<?php
namespace cebe\gravatar;
use yii\base\InvalidConfigException;
use yii\base\Widget;
use yii\helpers\Html;
/**
* Displays a gravatar image tag.
*
* To use this widget, you may insert the following code in a view:
*
* ```
* echo \cebe\gravatar\Gravatar::widget([
* 'email' => 'mail@cebe.cc',
* 'size' => 128,
* 'defaultImage' => 'monsterid',
* // 'secure' => false, // will be autodetected
* 'rating' => 'r',
* 'options'=>[
* 'alt'=>'Gravatar image',
* 'title'=>'Gravatar image',
* ]
* ]);
* </pre>
*
* @author Carsten Brandt <mail@cebe.cc>
*/
class Gravatar extends Widget
{
public $gravatarUrl = 'http://www.gravatar.com/avatar/';
public $gravatarUrlSecure = 'https://secure.gravatar.com/avatar/';
/**
* @var boolean whether to use [[gravatarUrl]] or [[gravatarUrlSecure]] as base url.
* If not set it will be detected by current request.
*/
public $secure;
/**
* @var int image size in pixel
* @link http://en.gravatar.com/site/implement/images/#size
*/
public $size = 128;
/**
* @var string the email to use
*/
public $email;
/**
* Can be one of '404', 'mm', 'identicon', 'monsterid', 'wavatar', 'retro' or a url to default image.
* @var string default image to use if no gravatar available
* @link http://en.gravatar.com/site/implement/images/#default-image
*/
public $defaultImage;
/**
* Can be one of 'g', 'pg', 'r', 'x'
* @var string gravatar image rating
* @link http://en.gravatar.com/site/implement/images/#rating
*/
public $rating = 'g';
/**
* @var string can be 'png' or 'jpg'
* @link http://en.gravatar.com/site/implement/images/#base-request
*/
public $fileType;
/**
* @var array html options for the image tag
*/
public $options = [];
public function run()
{
if (!isset($this->options['alt'])) {
$this->options['alt'] = 'Gravatar image';
}
echo Html::img($this->getImageUrl(), $this->options);
}
/**
* @return string generates the gravatar image url
*/
public function getImageUrl()
{
if ($this->secure === null) {
$this->secure = \Yii::$app->request->isSecureConnection;
}
$url = $this->secure ? $this->gravatarUrlSecure : $this->gravatarUrl;
$url .= $this->getEmailHash() . (($this->fileType !== null) ? '.' . $this->fileType : '');
$params = [
'r' => $this->rating,
's' => $this->size,
];
if ($this->defaultImage !== null) {
$params['d'] = $this->defaultImage;
}
$url .= '?' . http_build_query($params);
return $url;
}
private $_emailHash;
/**
* Generates email hash for gravatar url
*
* @link http://en.gravatar.com/site/implement/hash/
* @return string md5 hash of the trimmed lowercase [[email]]
* @throws \yii\base\InvalidConfigException if no email has been specified.
*/
public function getEmailHash()
{
if ($this->_emailHash !== null) {
return $this->_emailHash;
} elseif ($this->email === null) {
throw new InvalidConfigException('No email specified for Gravatar image Widget.');
}
return $this->_emailHash = md5(strtolower(trim($this->email)));
}
/**
* Sets the email hash to use for gravatar url
* @param $hash
*/
public function setEmailHash($hash)
{
$this->_emailHash = $hash;
}
}